Automatic roaming

Discussion in 'Wireless Networking' started by Rich Roller, Dec 5, 2005.

  1. Rich Roller

    Rich Roller Guest

    Automatic roaming seems a generally desirable feature of WiFi... to have
    your laptop automatically detect when there's a stronger Access Point within
    range and transparently switch to that better/stronger AP.

    Myself and my customers have noticed that laptops with built-in radios,
    using Windows XP to manage their wireless connections, do NOT do this. In
    order to re-associate with a nearer/better/stronger AP they have to
    stop/start the wireless radio.

    My questions are:

    1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    rather by the physical/network layer, e.g. the wireless radio/adapter?

    2. If it's the hardware, does anyone know if/how one might get a laptop,
    e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do automatic
    roaming?

    TIA,

    Rich
     
    Rich Roller, Dec 5, 2005
    #1
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  2. I'm curious as to why you think auto roaming is a good idea. What if the
    stronger network is one you have no access to ?? You'd have to manually
    connect back to the network you do have access to anyway.

    MD



    "Rich Roller" wrote:

    > Automatic roaming seems a generally desirable feature of WiFi... to have
    > your laptop automatically detect when there's a stronger Access Point within
    > range and transparently switch to that better/stronger AP.
    >
    > Myself and my customers have noticed that laptops with built-in radios,
    > using Windows XP to manage their wireless connections, do NOT do this. In
    > order to re-associate with a nearer/better/stronger AP they have to
    > stop/start the wireless radio.
    >
    > My questions are:
    >
    > 1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    > rather by the physical/network layer, e.g. the wireless radio/adapter?
    >
    > 2. If it's the hardware, does anyone know if/how one might get a laptop,
    > e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do automatic
    > roaming?
    >
    > TIA,
    >
    > Rich
    >
    >
    >
     
    =?Utf-8?B?TWFkRG9n?=, Dec 5, 2005
    #2
    1. Advertising

  3. Rich Roller

    Rich Roller Guest

    Yeah, I forgot to mention that I'm talking about roaming to the SAME WLAN,
    the SAME SSID, just a different AP. In other words, you take your laptop to
    another part of your company's offices and you want it to find the best
    AP/signal available within that same network.

    -Rich

    "MadDog" <> wrote in message
    news:...
    > I'm curious as to why you think auto roaming is a good idea. What if the
    > stronger network is one you have no access to ?? You'd have to manually
    > connect back to the network you do have access to anyway.
    >
    > MD
    >
    >
    >
    > "Rich Roller" wrote:
    >
    >> Automatic roaming seems a generally desirable feature of WiFi... to have
    >> your laptop automatically detect when there's a stronger Access Point
    >> within
    >> range and transparently switch to that better/stronger AP.
    >>
    >> Myself and my customers have noticed that laptops with built-in radios,
    >> using Windows XP to manage their wireless connections, do NOT do this.
    >> In
    >> order to re-associate with a nearer/better/stronger AP they have to
    >> stop/start the wireless radio.
    >>
    >> My questions are:
    >>
    >> 1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    >> rather by the physical/network layer, e.g. the wireless radio/adapter?
    >>
    >> 2. If it's the hardware, does anyone know if/how one might get a laptop,
    >> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >> automatic
    >> roaming?
    >>
    >> TIA,
    >>
    >> Rich
    >>
    >>
    >>
     
    Rich Roller, Dec 5, 2005
    #3
  4. Rich Roller

    Ryan Younger Guest

    XP's WZC does do this. Setup an ESS with different AP's and XP will
    automatically roam to the AP with the strongest signal.


    --
    All the best,

    Ryan Younger.
    http://spaces.msn.com/members/wirelessnetworking/ - Ryan's Wireless
    Networking Weblog




    "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    news:OTyTyXe%...
    > Yeah, I forgot to mention that I'm talking about roaming to the SAME WLAN,
    > the SAME SSID, just a different AP. In other words, you take your laptop
    > to another part of your company's offices and you want it to find the best
    > AP/signal available within that same network.
    >
    > -Rich
    >
    > "MadDog" <> wrote in message
    > news:...
    >> I'm curious as to why you think auto roaming is a good idea. What if the
    >> stronger network is one you have no access to ?? You'd have to manually
    >> connect back to the network you do have access to anyway.
    >>
    >> MD
    >>
    >>
    >>
    >> "Rich Roller" wrote:
    >>
    >>> Automatic roaming seems a generally desirable feature of WiFi... to have
    >>> your laptop automatically detect when there's a stronger Access Point
    >>> within
    >>> range and transparently switch to that better/stronger AP.
    >>>
    >>> Myself and my customers have noticed that laptops with built-in radios,
    >>> using Windows XP to manage their wireless connections, do NOT do this.
    >>> In
    >>> order to re-associate with a nearer/better/stronger AP they have to
    >>> stop/start the wireless radio.
    >>>
    >>> My questions are:
    >>>
    >>> 1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    >>> rather by the physical/network layer, e.g. the wireless radio/adapter?
    >>>
    >>> 2. If it's the hardware, does anyone know if/how one might get a laptop,
    >>> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>> automatic
    >>> roaming?
    >>>
    >>> TIA,
    >>>
    >>> Rich
    >>>
    >>>
    >>>

    >
    >
     
    Ryan Younger, Dec 6, 2005
    #4
  5. Rich Roller

    Rich Roller Guest

    From what I've seen in the XP interface there is a choice to enter an SSID
    of a WLAN and that's it. There are no settings/controls related to specific
    AP's or for roaming between AP's within a given SSID network.

    Is there some more advanced version of the Windows client (WZC?) that has
    more settings/controls?

    From my testing (and a newsgroup support engineer from MS has confirmed
    this) Windows will NOT automatically roam between different AP's on the same
    SSID/WLAN unless you stop/start radio, or disconnect/reconnect.

    In the past when I used Cisco wireless cards w/ Cisco client, this happened
    beautifully. We are bemused by the fact that the built-in Intel radio plus
    WZC doesn't do this for us.

    Have you had different results with auto roaming?

    -Rich


    "Ryan Younger" <> wrote in message
    news:eII$Ool%...
    > XP's WZC does do this. Setup an ESS with different AP's and XP will
    > automatically roam to the AP with the strongest signal.
    >
    >
    > --
    > All the best,
    >
    > Ryan Younger.
    > http://spaces.msn.com/members/wirelessnetworking/ - Ryan's Wireless
    > Networking Weblog
    >
    >
    >
    >
    > "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    > news:OTyTyXe%...
    >> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >> WLAN, the SAME SSID, just a different AP. In other words, you take your
    >> laptop to another part of your company's offices and you want it to find
    >> the best AP/signal available within that same network.
    >>
    >> -Rich
    >>
    >> "MadDog" <> wrote in message
    >> news:...
    >>> I'm curious as to why you think auto roaming is a good idea. What if
    >>> the
    >>> stronger network is one you have no access to ?? You'd have to manually
    >>> connect back to the network you do have access to anyway.
    >>>
    >>> MD
    >>>
    >>>
    >>>
    >>> "Rich Roller" wrote:
    >>>
    >>>> Automatic roaming seems a generally desirable feature of WiFi... to
    >>>> have
    >>>> your laptop automatically detect when there's a stronger Access Point
    >>>> within
    >>>> range and transparently switch to that better/stronger AP.
    >>>>
    >>>> Myself and my customers have noticed that laptops with built-in radios,
    >>>> using Windows XP to manage their wireless connections, do NOT do this.
    >>>> In
    >>>> order to re-associate with a nearer/better/stronger AP they have to
    >>>> stop/start the wireless radio.
    >>>>
    >>>> My questions are:
    >>>>
    >>>> 1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    >>>> rather by the physical/network layer, e.g. the wireless radio/adapter?
    >>>>
    >>>> 2. If it's the hardware, does anyone know if/how one might get a
    >>>> laptop,
    >>>> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>>> automatic
    >>>> roaming?
    >>>>
    >>>> TIA,
    >>>>
    >>>> Rich
    >>>>
    >>>>
    >>>>

    >>
    >>

    >
    >
     
    Rich Roller, Dec 6, 2005
    #5
  6. Rich Roller

    Cleve S. Guest

    My Dell Latitude D610, WinXP SP2, using WZC and not the Intel PROSet
    Wireless app. seems to do it fine. I have 3 G AP's, a Cisco & 2 Linksys.
    They're all WPA with a pre-shared key. They have the SSID hidden and
    they're all on the same channel.

    It doesn't seem to release the distant AP as fast as it might. It seems to
    look for a new AP once the existing signal gets down to around fair, even if
    the new signal is excellent.

    Cleve S.

    "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    news:%23XD8tKp%...
    > From what I've seen in the XP interface there is a choice to enter an SSID
    > of a WLAN and that's it. There are no settings/controls related to
    > specific AP's or for roaming between AP's within a given SSID network.
    >
    > Is there some more advanced version of the Windows client (WZC?) that has
    > more settings/controls?
    >
    > From my testing (and a newsgroup support engineer from MS has confirmed
    > this) Windows will NOT automatically roam between different AP's on the
    > same SSID/WLAN unless you stop/start radio, or disconnect/reconnect.
    >
    > In the past when I used Cisco wireless cards w/ Cisco client, this
    > happened beautifully. We are bemused by the fact that the built-in Intel
    > radio plus WZC doesn't do this for us.
    >
    > Have you had different results with auto roaming?
    >
    > -Rich
    >
    >
    > "Ryan Younger" <> wrote in message
    > news:eII$Ool%...
    >> XP's WZC does do this. Setup an ESS with different AP's and XP will
    >> automatically roam to the AP with the strongest signal.
    >>
    >>
    >> --
    >> All the best,
    >>
    >> Ryan Younger.
    >> http://spaces.msn.com/members/wirelessnetworking/ - Ryan's Wireless
    >> Networking Weblog
    >>
    >>
    >>
    >>
    >> "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    >> news:OTyTyXe%...
    >>> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >>> WLAN, the SAME SSID, just a different AP. In other words, you take your
    >>> laptop to another part of your company's offices and you want it to find
    >>> the best AP/signal available within that same network.
    >>>
    >>> -Rich
    >>>
    >>> "MadDog" <> wrote in message
    >>> news:...
    >>>> I'm curious as to why you think auto roaming is a good idea. What if
    >>>> the
    >>>> stronger network is one you have no access to ?? You'd have to
    >>>> manually
    >>>> connect back to the network you do have access to anyway.
    >>>>
    >>>> MD
    >>>>
    >>>>
    >>>>
    >>>> "Rich Roller" wrote:
    >>>>
    >>>>> Automatic roaming seems a generally desirable feature of WiFi... to
    >>>>> have
    >>>>> your laptop automatically detect when there's a stronger Access Point
    >>>>> within
    >>>>> range and transparently switch to that better/stronger AP.
    >>>>>
    >>>>> Myself and my customers have noticed that laptops with built-in
    >>>>> radios,
    >>>>> using Windows XP to manage their wireless connections, do NOT do this.
    >>>>> In
    >>>>> order to re-associate with a nearer/better/stronger AP they have to
    >>>>> stop/start the wireless radio.
    >>>>>
    >>>>> My questions are:
    >>>>>
    >>>>> 1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    >>>>> rather by the physical/network layer, e.g. the wireless radio/adapter?
    >>>>>
    >>>>> 2. If it's the hardware, does anyone know if/how one might get a
    >>>>> laptop,
    >>>>> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>>>> automatic
    >>>>> roaming?
    >>>>>
    >>>>> TIA,
    >>>>>
    >>>>> Rich
    >>>>>
    >>>>>
    >>>>>
    >>>
    >>>

    >>
    >>

    >
    >
     
    Cleve S., Dec 9, 2005
    #6
  7. Rich Roller

    Bill Steiner Guest

    When you have multiple access points, with signals that over lap, is it
    better to set them to different channels or keep them all on the same
    channel?

    Thanks,

    Bill

    "Cleve S." <> wrote in message
    news:%23VKZdlQ$...
    > My Dell Latitude D610, WinXP SP2, using WZC and not the Intel PROSet
    > Wireless app. seems to do it fine. I have 3 G AP's, a Cisco & 2 Linksys.
    > They're all WPA with a pre-shared key. They have the SSID hidden and
    > they're all on the same channel.
    >
    > It doesn't seem to release the distant AP as fast as it might. It seems
    > to look for a new AP once the existing signal gets down to around fair,
    > even if the new signal is excellent.
    >
    > Cleve S.
    >
    > "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    > news:%23XD8tKp%...
    >> From what I've seen in the XP interface there is a choice to enter an
    >> SSID of a WLAN and that's it. There are no settings/controls related to
    >> specific AP's or for roaming between AP's within a given SSID network.
    >>
    >> Is there some more advanced version of the Windows client (WZC?) that has
    >> more settings/controls?
    >>
    >> From my testing (and a newsgroup support engineer from MS has confirmed
    >> this) Windows will NOT automatically roam between different AP's on the
    >> same SSID/WLAN unless you stop/start radio, or disconnect/reconnect.
    >>
    >> In the past when I used Cisco wireless cards w/ Cisco client, this
    >> happened beautifully. We are bemused by the fact that the built-in Intel
    >> radio plus WZC doesn't do this for us.
    >>
    >> Have you had different results with auto roaming?
    >>
    >> -Rich
    >>
    >>
    >> "Ryan Younger" <> wrote in message
    >> news:eII$Ool%...
    >>> XP's WZC does do this. Setup an ESS with different AP's and XP will
    >>> automatically roam to the AP with the strongest signal.
    >>>
    >>>
    >>> --
    >>> All the best,
    >>>
    >>> Ryan Younger.
    >>> http://spaces.msn.com/members/wirelessnetworking/ - Ryan's Wireless
    >>> Networking Weblog
    >>>
    >>>
    >>>
    >>>
    >>> "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    >>> news:OTyTyXe%...
    >>>> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >>>> WLAN, the SAME SSID, just a different AP. In other words, you take
    >>>> your laptop to another part of your company's offices and you want it
    >>>> to find the best AP/signal available within that same network.
    >>>>
    >>>> -Rich
    >>>>
    >>>> "MadDog" <> wrote in message
    >>>> news:...
    >>>>> I'm curious as to why you think auto roaming is a good idea. What if
    >>>>> the
    >>>>> stronger network is one you have no access to ?? You'd have to
    >>>>> manually
    >>>>> connect back to the network you do have access to anyway.
    >>>>>
    >>>>> MD
    >>>>>
    >>>>>
    >>>>>
    >>>>> "Rich Roller" wrote:
    >>>>>
    >>>>>> Automatic roaming seems a generally desirable feature of WiFi... to
    >>>>>> have
    >>>>>> your laptop automatically detect when there's a stronger Access Point
    >>>>>> within
    >>>>>> range and transparently switch to that better/stronger AP.
    >>>>>>
    >>>>>> Myself and my customers have noticed that laptops with built-in
    >>>>>> radios,
    >>>>>> using Windows XP to manage their wireless connections, do NOT do
    >>>>>> this. In
    >>>>>> order to re-associate with a nearer/better/stronger AP they have to
    >>>>>> stop/start the wireless radio.
    >>>>>>
    >>>>>> My questions are:
    >>>>>>
    >>>>>> 1. Is automatic roaming controlled by the wireless client, e.g. XP,
    >>>>>> or
    >>>>>> rather by the physical/network layer, e.g. the wireless
    >>>>>> radio/adapter?
    >>>>>>
    >>>>>> 2. If it's the hardware, does anyone know if/how one might get a
    >>>>>> laptop,
    >>>>>> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>>>>> automatic
    >>>>>> roaming?
    >>>>>>
    >>>>>> TIA,
    >>>>>>
    >>>>>> Rich
    >>>>>>
    >>>>>>
    >>>>>>
    >>>>
    >>>>
    >>>
    >>>

    >>
    >>

    >
    >
     
    Bill Steiner, Dec 11, 2005
    #7
  8. Rich Roller

    Cleve S. Guest

    Bill,

    I'm not certain, but I remember seeing in the Linksys instructions to keep
    them on the same channel. I've had it both ways, didn't see much
    difference. We really don't roam here, we just can't get wire to some
    areas.

    Cleve S.

    "Bill Steiner" <> wrote in message
    news:eHFbCek$...
    > When you have multiple access points, with signals that over lap, is it
    > better to set them to different channels or keep them all on the same
    > channel?
    >
    > Thanks,
    >
    > Bill
    >
    > "Cleve S." <> wrote in message
    > news:%23VKZdlQ$...
    >> My Dell Latitude D610, WinXP SP2, using WZC and not the Intel PROSet
    >> Wireless app. seems to do it fine. I have 3 G AP's, a Cisco & 2
    >> Linksys. They're all WPA with a pre-shared key. They have the SSID
    >> hidden and they're all on the same channel.
    >>
    >> It doesn't seem to release the distant AP as fast as it might. It seems
    >> to look for a new AP once the existing signal gets down to around fair,
    >> even if the new signal is excellent.
    >>
    >> Cleve S.
    >>
    >> "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    >> news:%23XD8tKp%...
    >>> From what I've seen in the XP interface there is a choice to enter an
    >>> SSID of a WLAN and that's it. There are no settings/controls related to
    >>> specific AP's or for roaming between AP's within a given SSID network.
    >>>
    >>> Is there some more advanced version of the Windows client (WZC?) that
    >>> has more settings/controls?
    >>>
    >>> From my testing (and a newsgroup support engineer from MS has confirmed
    >>> this) Windows will NOT automatically roam between different AP's on the
    >>> same SSID/WLAN unless you stop/start radio, or disconnect/reconnect.
    >>>
    >>> In the past when I used Cisco wireless cards w/ Cisco client, this
    >>> happened beautifully. We are bemused by the fact that the built-in
    >>> Intel radio plus WZC doesn't do this for us.
    >>>
    >>> Have you had different results with auto roaming?
    >>>
    >>> -Rich
    >>>
    >>>
    >>> "Ryan Younger" <> wrote in message
    >>> news:eII$Ool%...
    >>>> XP's WZC does do this. Setup an ESS with different AP's and XP will
    >>>> automatically roam to the AP with the strongest signal.
    >>>>
    >>>>
    >>>> --
    >>>> All the best,
    >>>>
    >>>> Ryan Younger.
    >>>> http://spaces.msn.com/members/wirelessnetworking/ - Ryan's Wireless
    >>>> Networking Weblog
    >>>>
    >>>>
    >>>>
    >>>>
    >>>> "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    >>>> news:OTyTyXe%...
    >>>>> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >>>>> WLAN, the SAME SSID, just a different AP. In other words, you take
    >>>>> your laptop to another part of your company's offices and you want it
    >>>>> to find the best AP/signal available within that same network.
    >>>>>
    >>>>> -Rich
    >>>>>
    >>>>> "MadDog" <> wrote in message
    >>>>> news:...
    >>>>>> I'm curious as to why you think auto roaming is a good idea. What if
    >>>>>> the
    >>>>>> stronger network is one you have no access to ?? You'd have to
    >>>>>> manually
    >>>>>> connect back to the network you do have access to anyway.
    >>>>>>
    >>>>>> MD
    >>>>>>
    >>>>>>
    >>>>>>
    >>>>>> "Rich Roller" wrote:
    >>>>>>
    >>>>>>> Automatic roaming seems a generally desirable feature of WiFi... to
    >>>>>>> have
    >>>>>>> your laptop automatically detect when there's a stronger Access
    >>>>>>> Point within
    >>>>>>> range and transparently switch to that better/stronger AP.
    >>>>>>>
    >>>>>>> Myself and my customers have noticed that laptops with built-in
    >>>>>>> radios,
    >>>>>>> using Windows XP to manage their wireless connections, do NOT do
    >>>>>>> this. In
    >>>>>>> order to re-associate with a nearer/better/stronger AP they have to
    >>>>>>> stop/start the wireless radio.
    >>>>>>>
    >>>>>>> My questions are:
    >>>>>>>
    >>>>>>> 1. Is automatic roaming controlled by the wireless client, e.g. XP,
    >>>>>>> or
    >>>>>>> rather by the physical/network layer, e.g. the wireless
    >>>>>>> radio/adapter?
    >>>>>>>
    >>>>>>> 2. If it's the hardware, does anyone know if/how one might get a
    >>>>>>> laptop,
    >>>>>>> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>>>>>> automatic
    >>>>>>> roaming?
    >>>>>>>
    >>>>>>> TIA,
    >>>>>>>
    >>>>>>> Rich
    >>>>>>>
    >>>>>>>
    >>>>>>>
    >>>>>
    >>>>>
    >>>>
    >>>>
    >>>
    >>>

    >>
    >>

    >
    >
     
    Cleve S., Dec 11, 2005
    #8
  9. Rich,

    I'm glad you posted this because it was just a coincidence I was trying to
    setup the same thing at home and was searching the newsgroup to find a
    solution. I have a Linksys wireless router downstairs and added a Microsoft
    wireless router as an access point. I wanted to do this because the signal
    from the router in the basement would get weak in certain areas upstairs.

    The Compaq Presario I had with a wireless card would automatically recognize
    the stronger signal among the router and access point and automatically
    switch as I walked around the house. However, I also have an IBM Thinkpad
    (running XP) with the built-in Intel PRO/Wireless 2200 B/G and it would not
    switch as I walked around. I did figure out how to get it to work.

    Go to Device Manager
    Go to Properties for the Intel PRO/Wireless device
    Click on the Advanced tab
    Click on the "Roaming Aggressiveness" Property
    Mine was set to "Lowest" which, according to the Description, it will not
    switch unless there is significant signal degradation.

    I changed mine to one level below Highest and now it automatically switches
    as I roam around.

    -Jason


    "Rich Roller" wrote:

    > Yeah, I forgot to mention that I'm talking about roaming to the SAME WLAN,
    > the SAME SSID, just a different AP. In other words, you take your laptop to
    > another part of your company's offices and you want it to find the best
    > AP/signal available within that same network.
    >
    > -Rich
    >
    > "MadDog" <> wrote in message
    > news:...
    > > I'm curious as to why you think auto roaming is a good idea. What if the
    > > stronger network is one you have no access to ?? You'd have to manually
    > > connect back to the network you do have access to anyway.
    > >
    > > MD
    > >
    > >
    > >
    > > "Rich Roller" wrote:
    > >
    > >> Automatic roaming seems a generally desirable feature of WiFi... to have
    > >> your laptop automatically detect when there's a stronger Access Point
    > >> within
    > >> range and transparently switch to that better/stronger AP.
    > >>
    > >> Myself and my customers have noticed that laptops with built-in radios,
    > >> using Windows XP to manage their wireless connections, do NOT do this.
    > >> In
    > >> order to re-associate with a nearer/better/stronger AP they have to
    > >> stop/start the wireless radio.
    > >>
    > >> My questions are:
    > >>
    > >> 1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    > >> rather by the physical/network layer, e.g. the wireless radio/adapter?
    > >>
    > >> 2. If it's the hardware, does anyone know if/how one might get a laptop,
    > >> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    > >> automatic
    > >> roaming?
    > >>
    > >> TIA,
    > >>
    > >> Rich
    > >>
    > >>
    > >>

    >
    >
    >
     
    =?Utf-8?B?SmFzb24=?=, Dec 17, 2005
    #9
  10. Rich Roller

    Rich Roller Guest

    Bill's right. You should not have overlapping AP's using the same channel.
    If you have 3 AP's you can use channels 1, 6 & 11 which will ensure that
    there is no interference or contention between the AP's. -Rich

    "Cleve S." <> wrote in message
    news:et6d7Qq$...
    > Bill,
    >
    > I'm not certain, but I remember seeing in the Linksys instructions to keep
    > them on the same channel. I've had it both ways, didn't see much
    > difference. We really don't roam here, we just can't get wire to some
    > areas.
    >
    > Cleve S.
    >
    > "Bill Steiner" <> wrote in message
    > news:eHFbCek$...
    >> When you have multiple access points, with signals that over lap, is it
    >> better to set them to different channels or keep them all on the same
    >> channel?
    >>
    >> Thanks,
    >>
    >> Bill
    >>
    >> "Cleve S." <> wrote in message
    >> news:%23VKZdlQ$...
    >>> My Dell Latitude D610, WinXP SP2, using WZC and not the Intel PROSet
    >>> Wireless app. seems to do it fine. I have 3 G AP's, a Cisco & 2
    >>> Linksys. They're all WPA with a pre-shared key. They have the SSID
    >>> hidden and they're all on the same channel.
    >>>
    >>> It doesn't seem to release the distant AP as fast as it might. It seems
    >>> to look for a new AP once the existing signal gets down to around fair,
    >>> even if the new signal is excellent.
    >>>
    >>> Cleve S.
    >>>
    >>> "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    >>> news:%23XD8tKp%...
    >>>> From what I've seen in the XP interface there is a choice to enter an
    >>>> SSID of a WLAN and that's it. There are no settings/controls related
    >>>> to specific AP's or for roaming between AP's within a given SSID
    >>>> network.
    >>>>
    >>>> Is there some more advanced version of the Windows client (WZC?) that
    >>>> has more settings/controls?
    >>>>
    >>>> From my testing (and a newsgroup support engineer from MS has confirmed
    >>>> this) Windows will NOT automatically roam between different AP's on the
    >>>> same SSID/WLAN unless you stop/start radio, or disconnect/reconnect.
    >>>>
    >>>> In the past when I used Cisco wireless cards w/ Cisco client, this
    >>>> happened beautifully. We are bemused by the fact that the built-in
    >>>> Intel radio plus WZC doesn't do this for us.
    >>>>
    >>>> Have you had different results with auto roaming?
    >>>>
    >>>> -Rich
    >>>>
    >>>>
    >>>> "Ryan Younger" <> wrote in message
    >>>> news:eII$Ool%...
    >>>>> XP's WZC does do this. Setup an ESS with different AP's and XP will
    >>>>> automatically roam to the AP with the strongest signal.
    >>>>>
    >>>>>
    >>>>> --
    >>>>> All the best,
    >>>>>
    >>>>> Ryan Younger.
    >>>>> http://spaces.msn.com/members/wirelessnetworking/ - Ryan's Wireless
    >>>>> Networking Weblog
    >>>>>
    >>>>>
    >>>>>
    >>>>>
    >>>>> "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    >>>>> news:OTyTyXe%...
    >>>>>> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >>>>>> WLAN, the SAME SSID, just a different AP. In other words, you take
    >>>>>> your laptop to another part of your company's offices and you want it
    >>>>>> to find the best AP/signal available within that same network.
    >>>>>>
    >>>>>> -Rich
    >>>>>>
    >>>>>> "MadDog" <> wrote in message
    >>>>>> news:...
    >>>>>>> I'm curious as to why you think auto roaming is a good idea. What
    >>>>>>> if the
    >>>>>>> stronger network is one you have no access to ?? You'd have to
    >>>>>>> manually
    >>>>>>> connect back to the network you do have access to anyway.
    >>>>>>>
    >>>>>>> MD
    >>>>>>>
    >>>>>>>
    >>>>>>>
    >>>>>>> "Rich Roller" wrote:
    >>>>>>>
    >>>>>>>> Automatic roaming seems a generally desirable feature of WiFi... to
    >>>>>>>> have
    >>>>>>>> your laptop automatically detect when there's a stronger Access
    >>>>>>>> Point within
    >>>>>>>> range and transparently switch to that better/stronger AP.
    >>>>>>>>
    >>>>>>>> Myself and my customers have noticed that laptops with built-in
    >>>>>>>> radios,
    >>>>>>>> using Windows XP to manage their wireless connections, do NOT do
    >>>>>>>> this. In
    >>>>>>>> order to re-associate with a nearer/better/stronger AP they have to
    >>>>>>>> stop/start the wireless radio.
    >>>>>>>>
    >>>>>>>> My questions are:
    >>>>>>>>
    >>>>>>>> 1. Is automatic roaming controlled by the wireless client, e.g. XP,
    >>>>>>>> or
    >>>>>>>> rather by the physical/network layer, e.g. the wireless
    >>>>>>>> radio/adapter?
    >>>>>>>>
    >>>>>>>> 2. If it's the hardware, does anyone know if/how one might get a
    >>>>>>>> laptop,
    >>>>>>>> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>>>>>>> automatic
    >>>>>>>> roaming?
    >>>>>>>>
    >>>>>>>> TIA,
    >>>>>>>>
    >>>>>>>> Rich
    >>>>>>>>
    >>>>>>>>
    >>>>>>>>
    >>>>>>
    >>>>>>
    >>>>>
    >>>>>
    >>>>
    >>>>
    >>>
    >>>

    >>
    >>

    >
    >
     
    Rich Roller, Dec 28, 2005
    #10
  11. Rich Roller

    Rich Roller Guest

    Jason,

    Thanks very much for posting what may just be my solution! (I had heard
    somewhere else that roaming was more a function of the adapter than of XP or
    WZC)

    *EXCEPT* that my Thinkpad+Intel2200BG does not have the Advanced property
    "Roaming Aggressiveness". :-(

    Perhaps I need to upgrade the Intel driver??

    If I go into Properties of Intel PRO/Wireless 2200BG it says:
    HW ver 1.1.3
    Driver ver 8.1.0.28
    NCPA ver 8.1.0.35
    And there are only 4 properties:
    Ad Hoc Transmit Power
    Mixed Mode Protection
    Power Management
    Wireless Mode

    I suspect that you show more than 4 properties, and have different versions
    than I do... correct?

    Thanks again. (I feel like I have a line of pursuit now)

    -Rich


    "Jason" <> wrote in message
    news:D...
    > Rich,
    >
    > I'm glad you posted this because it was just a coincidence I was trying to
    > setup the same thing at home and was searching the newsgroup to find a
    > solution. I have a Linksys wireless router downstairs and added a
    > Microsoft
    > wireless router as an access point. I wanted to do this because the
    > signal
    > from the router in the basement would get weak in certain areas upstairs.
    >
    > The Compaq Presario I had with a wireless card would automatically
    > recognize
    > the stronger signal among the router and access point and automatically
    > switch as I walked around the house. However, I also have an IBM Thinkpad
    > (running XP) with the built-in Intel PRO/Wireless 2200 B/G and it would
    > not
    > switch as I walked around. I did figure out how to get it to work.
    >
    > Go to Device Manager
    > Go to Properties for the Intel PRO/Wireless device
    > Click on the Advanced tab
    > Click on the "Roaming Aggressiveness" Property
    > Mine was set to "Lowest" which, according to the Description, it will not
    > switch unless there is significant signal degradation.
    >
    > I changed mine to one level below Highest and now it automatically
    > switches
    > as I roam around.
    >
    > -Jason
    >
    >
    > "Rich Roller" wrote:
    >
    >> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >> WLAN,
    >> the SAME SSID, just a different AP. In other words, you take your laptop
    >> to
    >> another part of your company's offices and you want it to find the best
    >> AP/signal available within that same network.
    >>
    >> -Rich
    >>
    >> "MadDog" <> wrote in message
    >> news:...
    >> > I'm curious as to why you think auto roaming is a good idea. What if
    >> > the
    >> > stronger network is one you have no access to ?? You'd have to
    >> > manually
    >> > connect back to the network you do have access to anyway.
    >> >
    >> > MD
    >> >
    >> >
    >> >
    >> > "Rich Roller" wrote:
    >> >
    >> >> Automatic roaming seems a generally desirable feature of WiFi... to
    >> >> have
    >> >> your laptop automatically detect when there's a stronger Access Point
    >> >> within
    >> >> range and transparently switch to that better/stronger AP.
    >> >>
    >> >> Myself and my customers have noticed that laptops with built-in
    >> >> radios,
    >> >> using Windows XP to manage their wireless connections, do NOT do this.
    >> >> In
    >> >> order to re-associate with a nearer/better/stronger AP they have to
    >> >> stop/start the wireless radio.
    >> >>
    >> >> My questions are:
    >> >>
    >> >> 1. Is automatic roaming controlled by the wireless client, e.g. XP, or
    >> >> rather by the physical/network layer, e.g. the wireless radio/adapter?
    >> >>
    >> >> 2. If it's the hardware, does anyone know if/how one might get a
    >> >> laptop,
    >> >> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >> >> automatic
    >> >> roaming?
    >> >>
    >> >> TIA,
    >> >>
    >> >> Rich
    >> >>
    >> >>
    >> >>

    >>
    >>
    >>
     
    Rich Roller, Dec 28, 2005
    #11
  12. Rich Roller

    Rich Roller Guest

    Jason,

    Yes, I confirmed that the later driver (9.x) adds the "Roaming
    Aggressiveness" property. Haven't had a chance to test laptop in a multi-AP
    environment yet, but I'm optimistic based on what you said.

    I had been thinking of upgrading the driver but your post got me to actually
    do it. So thanks again!!

    -Rich


    "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    news:eoH8Zb%...
    > Jason,
    >
    > Thanks very much for posting what may just be my solution! (I had heard
    > somewhere else that roaming was more a function of the adapter than of XP
    > or WZC)
    >
    > *EXCEPT* that my Thinkpad+Intel2200BG does not have the Advanced property
    > "Roaming Aggressiveness". :-(
    >
    > Perhaps I need to upgrade the Intel driver??
    >
    > If I go into Properties of Intel PRO/Wireless 2200BG it says:
    > HW ver 1.1.3
    > Driver ver 8.1.0.28
    > NCPA ver 8.1.0.35
    > And there are only 4 properties:
    > Ad Hoc Transmit Power
    > Mixed Mode Protection
    > Power Management
    > Wireless Mode
    >
    > I suspect that you show more than 4 properties, and have different
    > versions than I do... correct?
    >
    > Thanks again. (I feel like I have a line of pursuit now)
    >
    > -Rich
    >
    >
    > "Jason" <> wrote in message
    > news:D...
    >> Rich,
    >>
    >> I'm glad you posted this because it was just a coincidence I was trying
    >> to
    >> setup the same thing at home and was searching the newsgroup to find a
    >> solution. I have a Linksys wireless router downstairs and added a
    >> Microsoft
    >> wireless router as an access point. I wanted to do this because the
    >> signal
    >> from the router in the basement would get weak in certain areas upstairs.
    >>
    >> The Compaq Presario I had with a wireless card would automatically
    >> recognize
    >> the stronger signal among the router and access point and automatically
    >> switch as I walked around the house. However, I also have an IBM
    >> Thinkpad
    >> (running XP) with the built-in Intel PRO/Wireless 2200 B/G and it would
    >> not
    >> switch as I walked around. I did figure out how to get it to work.
    >>
    >> Go to Device Manager
    >> Go to Properties for the Intel PRO/Wireless device
    >> Click on the Advanced tab
    >> Click on the "Roaming Aggressiveness" Property
    >> Mine was set to "Lowest" which, according to the Description, it will not
    >> switch unless there is significant signal degradation.
    >>
    >> I changed mine to one level below Highest and now it automatically
    >> switches
    >> as I roam around.
    >>
    >> -Jason
    >>
    >>
    >> "Rich Roller" wrote:
    >>
    >>> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >>> WLAN,
    >>> the SAME SSID, just a different AP. In other words, you take your
    >>> laptop to
    >>> another part of your company's offices and you want it to find the best
    >>> AP/signal available within that same network.
    >>>
    >>> -Rich
    >>>
    >>> "MadDog" <> wrote in message
    >>> news:...
    >>> > I'm curious as to why you think auto roaming is a good idea. What if
    >>> > the
    >>> > stronger network is one you have no access to ?? You'd have to
    >>> > manually
    >>> > connect back to the network you do have access to anyway.
    >>> >
    >>> > MD
    >>> >
    >>> >
    >>> >
    >>> > "Rich Roller" wrote:
    >>> >
    >>> >> Automatic roaming seems a generally desirable feature of WiFi... to
    >>> >> have
    >>> >> your laptop automatically detect when there's a stronger Access Point
    >>> >> within
    >>> >> range and transparently switch to that better/stronger AP.
    >>> >>
    >>> >> Myself and my customers have noticed that laptops with built-in
    >>> >> radios,
    >>> >> using Windows XP to manage their wireless connections, do NOT do
    >>> >> this.
    >>> >> In
    >>> >> order to re-associate with a nearer/better/stronger AP they have to
    >>> >> stop/start the wireless radio.
    >>> >>
    >>> >> My questions are:
    >>> >>
    >>> >> 1. Is automatic roaming controlled by the wireless client, e.g. XP,
    >>> >> or
    >>> >> rather by the physical/network layer, e.g. the wireless
    >>> >> radio/adapter?
    >>> >>
    >>> >> 2. If it's the hardware, does anyone know if/how one might get a
    >>> >> laptop,
    >>> >> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>> >> automatic
    >>> >> roaming?
    >>> >>
    >>> >> TIA,
    >>> >>
    >>> >> Rich
    >>> >>
    >>> >>
    >>> >>
    >>>
    >>>
    >>>

    >
    >
     
    Rich Roller, Dec 28, 2005
    #12
  13. Rich Roller

    Rich Roller Guest

    Update: A few weeks ago I did test this and indeed the "Roaming
    Aggressiveness" feature, set to 4 or 5, made a big difference in the laptops
    re-associating to the strongest AP when it comes into range.

    Thanks again!

    -Rich

    "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    news:...
    > Jason,
    >
    > Yes, I confirmed that the later driver (9.x) adds the "Roaming
    > Aggressiveness" property. Haven't had a chance to test laptop in a
    > multi-AP environment yet, but I'm optimistic based on what you said.
    >
    > I had been thinking of upgrading the driver but your post got me to
    > actually do it. So thanks again!!
    >
    > -Rich
    >
    >
    > "Rich Roller" <rich@*REMOVE-THIS*r2c.com> wrote in message
    > news:eoH8Zb%...
    >> Jason,
    >>
    >> Thanks very much for posting what may just be my solution! (I had heard
    >> somewhere else that roaming was more a function of the adapter than of XP
    >> or WZC)
    >>
    >> *EXCEPT* that my Thinkpad+Intel2200BG does not have the Advanced property
    >> "Roaming Aggressiveness". :-(
    >>
    >> Perhaps I need to upgrade the Intel driver??
    >>
    >> If I go into Properties of Intel PRO/Wireless 2200BG it says:
    >> HW ver 1.1.3
    >> Driver ver 8.1.0.28
    >> NCPA ver 8.1.0.35
    >> And there are only 4 properties:
    >> Ad Hoc Transmit Power
    >> Mixed Mode Protection
    >> Power Management
    >> Wireless Mode
    >>
    >> I suspect that you show more than 4 properties, and have different
    >> versions than I do... correct?
    >>
    >> Thanks again. (I feel like I have a line of pursuit now)
    >>
    >> -Rich
    >>
    >>
    >> "Jason" <> wrote in message
    >> news:D...
    >>> Rich,
    >>>
    >>> I'm glad you posted this because it was just a coincidence I was trying
    >>> to
    >>> setup the same thing at home and was searching the newsgroup to find a
    >>> solution. I have a Linksys wireless router downstairs and added a
    >>> Microsoft
    >>> wireless router as an access point. I wanted to do this because the
    >>> signal
    >>> from the router in the basement would get weak in certain areas
    >>> upstairs.
    >>>
    >>> The Compaq Presario I had with a wireless card would automatically
    >>> recognize
    >>> the stronger signal among the router and access point and automatically
    >>> switch as I walked around the house. However, I also have an IBM
    >>> Thinkpad
    >>> (running XP) with the built-in Intel PRO/Wireless 2200 B/G and it would
    >>> not
    >>> switch as I walked around. I did figure out how to get it to work.
    >>>
    >>> Go to Device Manager
    >>> Go to Properties for the Intel PRO/Wireless device
    >>> Click on the Advanced tab
    >>> Click on the "Roaming Aggressiveness" Property
    >>> Mine was set to "Lowest" which, according to the Description, it will
    >>> not
    >>> switch unless there is significant signal degradation.
    >>>
    >>> I changed mine to one level below Highest and now it automatically
    >>> switches
    >>> as I roam around.
    >>>
    >>> -Jason
    >>>
    >>>
    >>> "Rich Roller" wrote:
    >>>
    >>>> Yeah, I forgot to mention that I'm talking about roaming to the SAME
    >>>> WLAN,
    >>>> the SAME SSID, just a different AP. In other words, you take your
    >>>> laptop to
    >>>> another part of your company's offices and you want it to find the best
    >>>> AP/signal available within that same network.
    >>>>
    >>>> -Rich
    >>>>
    >>>> "MadDog" <> wrote in message
    >>>> news:...
    >>>> > I'm curious as to why you think auto roaming is a good idea. What if
    >>>> > the
    >>>> > stronger network is one you have no access to ?? You'd have to
    >>>> > manually
    >>>> > connect back to the network you do have access to anyway.
    >>>> >
    >>>> > MD
    >>>> >
    >>>> >
    >>>> >
    >>>> > "Rich Roller" wrote:
    >>>> >
    >>>> >> Automatic roaming seems a generally desirable feature of WiFi... to
    >>>> >> have
    >>>> >> your laptop automatically detect when there's a stronger Access
    >>>> >> Point
    >>>> >> within
    >>>> >> range and transparently switch to that better/stronger AP.
    >>>> >>
    >>>> >> Myself and my customers have noticed that laptops with built-in
    >>>> >> radios,
    >>>> >> using Windows XP to manage their wireless connections, do NOT do
    >>>> >> this.
    >>>> >> In
    >>>> >> order to re-associate with a nearer/better/stronger AP they have to
    >>>> >> stop/start the wireless radio.
    >>>> >>
    >>>> >> My questions are:
    >>>> >>
    >>>> >> 1. Is automatic roaming controlled by the wireless client, e.g. XP,
    >>>> >> or
    >>>> >> rather by the physical/network layer, e.g. the wireless
    >>>> >> radio/adapter?
    >>>> >>
    >>>> >> 2. If it's the hardware, does anyone know if/how one might get a
    >>>> >> laptop,
    >>>> >> e.g. IBM Thinkpad, with built-in Intel PRO/Wireless 2200 B/G to do
    >>>> >> automatic
    >>>> >> roaming?
    >>>> >>
    >>>> >> TIA,
    >>>> >>
    >>>> >> Rich
    >>>> >>
    >>>> >>
    >>>> >>
    >>>>
    >>>>
    >>>>

    >>
    >>

    >
    >
     
    Rich Roller, Jan 17, 2006
    #13
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