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> One other setting is a "Allow computer to turn off device to save
> power" which could be causing your computer to shut down the network
> card when it thinks it's not being used. *See:
>
> "How to disable power management for a network adapter when you
> deploy Windows XP"
> * <http://support.microsoft.com/kb/837058>

I was almost going to reply that the issue is solved but sadly enough
not yet. I have the impression though that now the connection gets
lost less often but it's just a feeling. I unchecked the tickbox that
says "allow computer to turn off device to save power"
Oops, I just got disconnected again but this time it didn't reconnect
shortly thereafter. I opened "view wireless networks" list and hit
"refresh network list" but couldn't see my SSID. Hit "refresh network
list" another 10 times or so and then suddenly the ssid appeared.
Selected it and hit connect button but it wouldn't connect. Hit cancel
and then I noticed it connected itself again automatically (??!**$!)

Another thing is that I can see a second wireless icon in the systray.
The one I normally use to connect is "wireless network connection 2"
which is an "Intel wireless wifi link 4965agn" and the other one is
called "wireless network connection" and is a "Globe Trotter Module
HSDPA Network Card" but never seems to be connected. When I hit a
button on the laptop a "wireless selector" menu appears with bluetooth
off, WLAN on and UMTS off. I have no clue at all what these are for.

Alex <> wrote in
news:cedd7876-45b7-4396-a862-
:

> Another thing is that I can see a second wireless icon in the
> systray. The one I normally use to connect is "wireless network
> connection 2" which is an "Intel wireless wifi link 4965agn" and
> the other one is called "wireless network connection" and is a
> "Globe Trotter Module HSDPA Network Card" but never seems to be
> connected. When I hit a button on the laptop a "wireless selector"
> menu appears with bluetooth off, WLAN on and UMTS off. I have no
> clue at all what these are for.
>
>

Look in your Network Connections control panel and see if you see this
second wireless adapter. If you do, right click on it and select
"Disable". It could be that you have both a wireless card and a built-
in motherboard wireless function that interfere with each other. (Also
check your device manager -- Start->Run->devmgmt.msc)

HTH,
John

On Jan 9, 12:20*am, Alex <ad1...@telenet.be> wrote:
> > One other setting is a "Allow computer to turn off device to save
> > power" which could be causing your computer to shut down the network
> > card when it thinks it's not being used. *See:
>
> > "How to disable power management for a network adapter when you
> > deploy Windows XP"
> > * <http://support.microsoft.com/kb/837058>
>
> I was almost going to reply that the issue is solved but sadly enough
> not yet. I have the impression though that now the connection gets
> lost less often but it's just a feeling. I unchecked the tickbox that
> says "allow computer to turn off device to save power"
> Oops, I just got disconnected again but this time it didn't reconnect
> shortly thereafter. I opened "view wireless networks" list and hit
> "refresh network list" but couldn't see my SSID. Hit "refresh network
> list" another 10 times or so and then suddenly the ssid appeared.
> Selected it and hit connect button but it wouldn't connect. Hit cancel
> and then I noticed it connected itself again automatically (??!**$!)
>
> Another thing is that I can see a second wireless icon in the systray.
> The one I normally use to connect is "wireless network connection 2"
> which is an "Intel wireless wifi link 4965agn" and the other one is
> called "wireless network connection" and is a "Globe Trotter Module
> HSDPA Network Card" but never seems to be connected. When I hit a
> button on the laptop a "wireless selector" menu appears with bluetooth
> off, WLAN on and UMTS off. I have no clue at all what these are for.

The Globe Trotter HSDPA Card is for connection over a mobile phone
network so is not technically a
WiFi card - it works on Cell phone frequencies not 802.11g / n

Alister

Alister <> wrote in
news:d63b1ac0-fdb8-4cd8-abe4-
m:

> On Jan 9, 12:20*am, Alex <ad1...@telenet.be> wrote:
>>> One other setting is a "Allow computer to turn off device to
>>> save power" which could be causing your computer to shut down
>>> the network card when it thinks it's not being used. *See:
>>
>>> "How to disable power management for a network adapter when you
>>> deploy Windows XP"
>>> * <http://support.microsoft.com/kb/837058>
>>
>> I was almost going to reply that the issue is solved but sadly
>> enough not yet. I have the impression though that now the
>> connection gets lost less often but it's just a feeling. I
>> unchecked the tickbox that says "allow computer to turn off
>> device to save power" Oops, I just got disconnected again but
>> this time it didn't reconnect shortly thereafter. I opened "view
>> wireless networks" list and hit "refresh network list" but
>> couldn't see my SSID. Hit "refresh network list" another 10 times
>> or so and then suddenly the ssid appeared. Selected it and hit
>> connect button but it wouldn't connect. Hit cancel and then I
>> noticed it connected itself again automatically (??!**$!)
>>
>> Another thing is that I can see a second wireless icon in the
>> systray. The one I normally use to connect is "wireless network
>> connection 2" which is an "Intel wireless wifi link 4965agn" and
>> the other one is called "wireless network connection" and is a
>> "Globe Trotter Module HSDPA Network Card" but never seems to be
>> connected. When I hit a button on the laptop a "wireless
>> selector" menu appears with bluetooth off, WLAN on and UMTS off.
>> I have no clue at all what these are for.
>
> The Globe Trotter HSDPA Card is for connection over a mobile phone
> network so is not technically a
> WiFi card - it works on Cell phone frequencies not 802.11g / n
>
> Alister

I did not know that. But it still is a wireless device and probably
has the same default metric in the routing table as the 802.11g
network. If the HSDPA card were to disconnect or reconnect, that
would cause a change in the routing table which could cause the
internet connection to switch away from the 802.11g network if they
both have the same metric. It's still best to have only one wireless
connection active at a time and if it were me, I'd disable the HSDPA
card when running on 802.11g -- or at the very least manually assign
the HSDPA card a higher metric.

-- John

On Jan 10, 2:22*am, John Wunderlich <jwunderl...@lycos.com> wrote:
> Alister <alister....@hotmail.co.uk> wrote innews:d63b1ac0-fdb8-4cd8-abe4-
> m:
>
>
>
> > On Jan 9, 12:20*am, Alex <ad1...@telenet.be> wrote:
> >>> One other setting is a "Allow computer to turn off device to
> >>> save power" which could be causing your computer to shut down
> >>> the network card when it thinks it's not being used. *See:
>
> >>> "How to disable power management for a network adapter when you
> >>> deploy Windows XP"
> >>> * <http://support.microsoft.com/kb/837058>
>
> >> I was almost going to reply that the issue is solved but sadly
> >> enough not yet. I have the impression though that now the
> >> connection gets lost less often but it's just a feeling. I
> >> unchecked the tickbox that says "allow computer to turn off
> >> device to save power" Oops, I just got disconnected again but
> >> this time it didn't reconnect shortly thereafter. I opened "view
> >> wireless networks" list and hit "refresh network list" but
> >> couldn't see my SSID. Hit "refresh network list" another 10 times
> >> or so and then suddenly the ssid appeared. Selected it and hit
> >> connect button but it wouldn't connect. Hit cancel and then I
> >> noticed it connected itself again automatically (??!**$!)
>
> >> Another thing is that I can see a second wireless icon in the
> >> systray. The one I normally use to connect is "wireless network
> >> connection 2" which is an "Intel wireless wifi link 4965agn" and
> >> the other one is called "wireless network connection" and is a
> >> "Globe Trotter Module HSDPA Network Card" but never seems to be
> >> connected. When I hit a button on the laptop a "wireless
> >> selector" menu appears with bluetooth off, WLAN on and UMTS off.
> >> I have no clue at all what these are for.
>
> > The Globe Trotter HSDPA Card is for connection over a mobile phone
> > network so is not technically a
> > WiFi card - it works on Cell phone frequencies not 802.11g / n
>
> > Alister
>
> I did not know that. *But it still is a wireless device and probably
> has the same default metric in the routing table as the 802.11g
> network. *If the HSDPA card were to disconnect or reconnect, that
> would cause a change in the routing table which could cause the
> internet connection to switch away from the 802.11g network if they
> both have the same metric. *It's still best to have only one wireless
> connection active at a time and if it were me, I'd disable the HSDPA
> card when running on 802.11g -- or at the very least manually assign
> the HSDPA card a higher metric.
>
> -- John

I agree totally, and in fact for me to say it is not a WiFi device is
ridiculous really - In my defence I meant it is not a Wireless
Ethernet Device using 802.11 Protocols.

I agree with what you say about the routing table entries also, but
from my experience with HSDPA devices they are normally software
controlled and have to be specifically instructed to connect by a
piece of client software - they don't attempt a connection
automatically when a network is detected, like WiFi does. From what
the OP has written I am not sure if he was even aware that he had this
functionality so it is unlikely that the HSDPA card is the cause of
the issues.

Alister

On Jan 9, 5:49 am, John Wunderlich <jwunderl...@lycos.com> wrote:
> Alex <ad1...@telenet.be> wrote innews:cedd7876-45b7-4396-a862-
> Look in your Network Connections control panel and see if you see this
> second wireless adapter. If you do, right click on it and select
> "Disable". It could be that you have both a wireless card and a built-
> in motherboard wireless function that interfere with each other. (Also
> check your device manager -- Start->Run->devmgmt.msc)

Now why didn't I think of that myself, seems logical to me. I just
disabled the Globe Trotter network card and it is confirmed in the
device management panel with a red cross and the icon doesn't appear
in the systray anymore. Now I'll have to use the computer for some
time to see if the problem still persists. My nose is telling me we
are getting closer to the solution. I will keep you informed and I
hope it will be solved now. If not, could it be that the problem is in
the router? I ask because I have another thread here:
http://groups.google.com/group/comp....5415ad19?hl=en
about my Maxtor portable hard drive which is connected via a USB cable
to my router's built in NAS USB port. To summarise the article, while
browsing through the hard drive's folders over the network, explorer
often hangs and CTRL+ALT+DEL is the only solution, also data transfer
is very slow which is probably because my router's usb port is usb1.1
as someone mentioned, and I cannot always access MSHOME in explorer
and get the message "mshome is not accessible. You may not have
permission to use the network resources..." In other words, I am
considering to buy a new router.

OK while typing this post I didn't get disconnected from the wireless
now that I've disabled the second wireless card. May be good luck
though, I'll have to test it for some more time.

> Look in your Network Connections control panel and see if you see this
> second wireless adapter. *If you do, right click on it and select
> "Disable". *It could be that you have both a wireless card and a built-
> in motherboard wireless function that interfere with each other. *(Also
> check your device manager -- Start->Run->devmgmt.msc)

I've tested the connection for some time now with the second adapter
disabled as you said. It didn't solve the problem, I still get
connection interruptions.

I also managed to change the security settings this time. I tried with
all security disabled (open as well as shared network in windows
wireless control panel), with WEP, WPA-PSK(TKIP) and WPA2-PSK(AES).
And this with combinations of roaming aggressiveness zero (slider far
left) and default (slider in the middle). Allow windows to turn off
this device was disabled all the time. I still get connection
interruptions with these settings. It takes a lot of time too to test
since sometimes I used the laptop like 10-15min without disconnections
but sometimes I get disconnected twice in 2min. I guess I'll have to
keep experimenting with the settings until I find the best one and in
the meantime I'm looking out for a new router because I have other
issues with the one I have now in another thread. I don't think my
laptop is the cause since at work I don't get connection
interruptions, although I must admit I don't use my laptop a lot at
work and I don't have time to test it extensively.

Alex <> wrote in
news:ef6d4deb-0276-4a62-8c49-
:

>> Look in your Network Connections control panel and see if you see
>> this second wireless adapter. *If you do, right click on it and
>> select "Disable". *It could be that you have both a wireless card
>> and a built- in motherboard wireless function that interfere with
>> each other. *(Also check your device manager --
>> Start->Run->devmgmt.msc)
>
> I've tested the connection for some time now with the second
> adapter disabled as you said. It didn't solve the problem, I still
> get connection interruptions.
>
> I also managed to change the security settings this time. I tried
> with all security disabled (open as well as shared network in
> windows wireless control panel), with WEP, WPA-PSK(TKIP) and
> WPA2-PSK(AES). And this with combinations of roaming
> aggressiveness zero (slider far left) and default (slider in the
> middle). Allow windows to turn off this device was disabled all
> the time. I still get connection interruptions with these
> settings. It takes a lot of time too to test since sometimes I
> used the laptop like 10-15min without disconnections but sometimes
> I get disconnected twice in 2min. I guess I'll have to keep
> experimenting with the settings until I find the best one and in
> the meantime I'm looking out for a new router because I have other
> issues with the one I have now in another thread. I don't think my
> laptop is the cause since at work I don't get connection
> interruptions, although I must admit I don't use my laptop a lot
> at work and I don't have time to test it extensively.

I have no further ideas unless you want to try to borrow another
router. You seem to have a really stubborn problem.

--- John

I will look out for another router.

Thanks anyway for your help everyone, I really appreciate it

Alex

I now have another router (Linksys WRT610N) and the problem seems to
be solved. No more wireless connection interruptions.

Thanks all for the help