2 computer Peer to Peer - one computer not able to be pinged.

Discussion in 'Wireless Networking' started by =?Utf-8?B?VGltbWF5?=, Jul 31, 2005.

  1. Hello, I have a fairly 'basic' peer to peer setup with a HP Pavillion Laptop
    using an Intel Pro Wireless 2200BG and a DELL Desktop which I have just
    installed a D-Link DWL-G510. I have spent the last 3 days trying to get this
    to work and have had no success. I was hoping to be able to use the old 'plug
    and play' approach but not to be so. Hmm, after 3 days of headbanging I
    thought it was time to seek help.

    The situation is that the computers can see each other and connect on the
    wireless network that I have setup. I have tried to keep it simple and both
    have WEP disabled so no encryption present. I have also setup a windows
    workgroup and setup up each individual computer on it. Also, both computers
    are running XP Home addition with SP2.
    The symptons are:
    -I have had to manually set the I.P. address of both computers so they are
    within the same workgroup, i.e. 169.254.39.0 for the laptop and 169.254.39.1
    for the desktop.
    - On the laptop I can see both computers in the workgroup using explorer but
    cannot access any shared directories/printers on it.
    - On the desktop I can see the workgroup but when I click to see what
    computers are on it, it gives me an 'workgroup is not accessible' message
    after about a minute.
    - From the desktop I can ping the laptop computer but when I ping it's own
    address there is no reply and it times out.
    - From the laptop I can ping itself but when I ping the desktop it times out.
    - The packets received is only about 3-4% of the packets received on both
    computers. i.e.889 sent , 18 received.
    - I suspect there is an issue with the desktop setup since I can't ping it
    from anywhere and can't see any computers here. So I have displayed the
    ipconfig /all for the desktop below - I have 1 dial up internet connect, 1
    disabled wired LAN connector(currently disabled) and 1 wireless network
    adaptor.

    Windows IP Configuration

    Host Name . . . . . . . . . . . . : NAME_DESKTOP
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : Yes
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Local Area Connection:
    Media State . . . . . . . . . . . : Media disconnected
    Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network
    Connection
    Physical Address. . . . . . . . . : 00-07-E9-CF-24-C3

    PPP adapter Connect to DigiPlus:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
    Physical Address. . . . . . . . . : 00-53-45-00-00-00
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 210.10.140.244
    Subnet Mask . . . . . . . . . . . : 255.255.255.255
    Default Gateway . . . . . . . . . : 210.10.140.244
    DNS Servers . . . . . . . . . . . : 203.8.183.1
    NetBIOS over Tcpip. . . . . . . . : Disabled

    Ethernet adapter Wireless Network Connection:

    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : D-Link AirPlus G DWL-G510
    Wireless PCI Adapter(rev.B)
    Physical Address. . . . . . . . . : 00-11-95-E5-3D-27
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 169.254.39.1
    Subnet Mask . . . . . . . . . . . : 255.255.0.0
    Default Gateway . . . . . . . . . :

    Any help or advice would be greatly received.

    Many thanks.
    =?Utf-8?B?VGltbWF5?=, Jul 31, 2005
    #1
    1. Advertising

  2. =?Utf-8?B?VGltbWF5?=

    GTS Guest

    Have you set both wireless NIC's to ad-hoc mode? This is necessary for a PC
    to PC wireless connection when there is no WAP or WRouter involved.

    The 169. address range is technically reserved for AIPA (Automatic Private
    IP Addressing) - automatic assignment by Windows when no DHCP server is
    found. It's unusual to assign static addresses this way. I would suggest
    using 192.168.0.2 and 192.168.0.3 (for example) with a subnet of
    255.255.255.0. The one unusual thing I see in your ipconfig output is the
    use of the 255.255.0.0 subnet on the desktop rather than 255.255.255.0
    subnet. If different on the laptop, that might be your main problem.

    For file sharing with XP HOME, also make sure the guest account is enabled
    on both machines. Run the command
    net user guest /active:yes on each to be sure. Also, configure any
    firewall properly, etc.
    --

    "Timmay" <> wrote in message
    news:...
    > Hello, I have a fairly 'basic' peer to peer setup with a HP Pavillion
    > Laptop
    > using an Intel Pro Wireless 2200BG and a DELL Desktop which I have just
    > installed a D-Link DWL-G510. I have spent the last 3 days trying to get
    > this
    > to work and have had no success. I was hoping to be able to use the old
    > 'plug
    > and play' approach but not to be so. Hmm, after 3 days of headbanging I
    > thought it was time to seek help.
    >
    > The situation is that the computers can see each other and connect on the
    > wireless network that I have setup. I have tried to keep it simple and
    > both
    > have WEP disabled so no encryption present. I have also setup a windows
    > workgroup and setup up each individual computer on it. Also, both
    > computers
    > are running XP Home addition with SP2.
    > The symptons are:
    > -I have had to manually set the I.P. address of both computers so they are
    > within the same workgroup, i.e. 169.254.39.0 for the laptop and
    > 169.254.39.1
    > for the desktop.
    > - On the laptop I can see both computers in the workgroup using explorer
    > but
    > cannot access any shared directories/printers on it.
    > - On the desktop I can see the workgroup but when I click to see what
    > computers are on it, it gives me an 'workgroup is not accessible' message
    > after about a minute.
    > - From the desktop I can ping the laptop computer but when I ping it's own
    > address there is no reply and it times out.
    > - From the laptop I can ping itself but when I ping the desktop it times
    > out.
    > - The packets received is only about 3-4% of the packets received on both
    > computers. i.e.889 sent , 18 received.
    > - I suspect there is an issue with the desktop setup since I can't ping it
    > from anywhere and can't see any computers here. So I have displayed the
    > ipconfig /all for the desktop below - I have 1 dial up internet connect, 1
    > disabled wired LAN connector(currently disabled) and 1 wireless network
    > adaptor.
    >
    > Windows IP Configuration
    >
    > Host Name . . . . . . . . . . . . : NAME_DESKTOP
    > Primary Dns Suffix . . . . . . . :
    > Node Type . . . . . . . . . . . . : Unknown
    > IP Routing Enabled. . . . . . . . : Yes
    > WINS Proxy Enabled. . . . . . . . : No
    >
    > Ethernet adapter Local Area Connection:
    > Media State . . . . . . . . . . . : Media disconnected
    > Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network
    > Connection
    > Physical Address. . . . . . . . . : 00-07-E9-CF-24-C3
    >
    > PPP adapter Connect to DigiPlus:
    > Connection-specific DNS Suffix . :
    > Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
    > Physical Address. . . . . . . . . : 00-53-45-00-00-00
    > Dhcp Enabled. . . . . . . . . . . : No
    > IP Address. . . . . . . . . . . . : 210.10.140.244
    > Subnet Mask . . . . . . . . . . . : 255.255.255.255
    > Default Gateway . . . . . . . . . : 210.10.140.244
    > DNS Servers . . . . . . . . . . . : 203.8.183.1
    > NetBIOS over Tcpip. . . . . . . . : Disabled
    >
    > Ethernet adapter Wireless Network Connection:
    >
    > Connection-specific DNS Suffix . :
    > Description . . . . . . . . . . . : D-Link AirPlus G DWL-G510
    > Wireless PCI Adapter(rev.B)
    > Physical Address. . . . . . . . . : 00-11-95-E5-3D-27
    > Dhcp Enabled. . . . . . . . . . . : No
    > IP Address. . . . . . . . . . . . : 169.254.39.1
    > Subnet Mask . . . . . . . . . . . : 255.255.0.0
    > Default Gateway . . . . . . . . . :
    >
    > Any help or advice would be greatly received.
    >
    > Many thanks.
    >
    GTS, Jul 31, 2005
    #2
    1. Advertising

  3. Hi there, thanks very much for your post.
    I can confirm that both NIC adaptors are set to Peer-to-Peer only. I have
    changed the IP addresses of both of these to the range that you suggested and
    still no luck. I also ran the cmd you suggested for guest and unfortunately
    this made no difference also. I have disabled my firewall settings for my
    wireless connection so this should not be a problem.

    For ref, here is my new ipconfig for my desktop, followed by the laptop:
    Windows IP Configuration

    Host Name . . . . . . . . . . . . : NAME_DESKTOP
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Local Area Connection:
    Media State . . . . . . . . . . . : Media disconnected
    Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network
    Connection
    Physical Address. . . . . . . . . : 00-07-E9-CF-24-C3

    Ethernet adapter Wireless Network Connection:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : D-Link AirPlus G DWL-G510
    Wireless PCI Adapter(rev.B)
    Physical Address. . . . . . . . . : 00-11-95-E5-3D-27
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.0.2
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . :

    PPP adapter Connect to DigiPlus:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
    Physical Address. . . . . . . . . : 00-53-45-00-00-00
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 210.10.136.136
    Subnet Mask . . . . . . . . . . . : 255.255.255.255
    Default Gateway . . . . . . . . . : 210.10.136.136
    DNS Servers . . . . . . . . . . . : 203.8.183.1
    NetBIOS over Tcpip. . . . . . . . : Disabled



    For the laptop:
    Windows IP Configuration
    Host Name . . . . . . . . . . . . : NAME_LAPTOP
    Primary Dns Suffix . . . . . . . :
    Node Type . . . . . . . . . . . . : Unknown
    IP Routing Enabled. . . . . . . . : No
    WINS Proxy Enabled. . . . . . . . : No

    Ethernet adapter Wireless Network Connection:
    Connection-specific DNS Suffix . :
    Description . . . . . . . . . . . : Intel(R) PRO/Wireless 2200BG
    Network Connection
    Physical Address. . . . . . . . . : 00-0E-35-D6-D5-94
    Dhcp Enabled. . . . . . . . . . . : No
    IP Address. . . . . . . . . . . . : 192.168.0.3
    Subnet Mask . . . . . . . . . . . : 255.255.255.0
    Default Gateway . . . . . . . . . :

    Ethernet adapter Local Area Connection:
    Media State . . . . . . . . . . . : Media disconnected
    Description . . . . . . . . . . . : Realtek RTL8139/810x Family Fast
    Ethernet NIC
    Physical Address. . . . . . . . . : 00-C0-9F-75-3C-19

    I have also contacted D-LINK tech support, although they went through some
    of the very basic questions and are escalating to level 2 support.

    I am still suspicious of my network card in the desktop as I can not ping
    it. Is there any reason why this would be the case? Even with software config
    being wrong I still would have thought I could ping the IP address of the
    desktop from the desktop without a problem.

    Any other suggestions would be greatly appreciated.

    Thanks in advance.


    "GTS" wrote:

    > Have you set both wireless NIC's to ad-hoc mode? This is necessary for a PC
    > to PC wireless connection when there is no WAP or WRouter involved.
    >
    > The 169. address range is technically reserved for AIPA (Automatic Private
    > IP Addressing) - automatic assignment by Windows when no DHCP server is
    > found. It's unusual to assign static addresses this way. I would suggest
    > using 192.168.0.2 and 192.168.0.3 (for example) with a subnet of
    > 255.255.255.0. The one unusual thing I see in your ipconfig output is the
    > use of the 255.255.0.0 subnet on the desktop rather than 255.255.255.0
    > subnet. If different on the laptop, that might be your main problem.
    >
    > For file sharing with XP HOME, also make sure the guest account is enabled
    > on both machines. Run the command
    > net user guest /active:yes on each to be sure. Also, configure any
    > firewall properly, etc.
    > --
    >
    > "Timmay" <> wrote in message
    > news:...
    > > Hello, I have a fairly 'basic' peer to peer setup with a HP Pavillion
    > > Laptop
    > > using an Intel Pro Wireless 2200BG and a DELL Desktop which I have just
    > > installed a D-Link DWL-G510. I have spent the last 3 days trying to get
    > > this
    > > to work and have had no success. I was hoping to be able to use the old
    > > 'plug
    > > and play' approach but not to be so. Hmm, after 3 days of headbanging I
    > > thought it was time to seek help.
    > >
    > > The situation is that the computers can see each other and connect on the
    > > wireless network that I have setup. I have tried to keep it simple and
    > > both
    > > have WEP disabled so no encryption present. I have also setup a windows
    > > workgroup and setup up each individual computer on it. Also, both
    > > computers
    > > are running XP Home addition with SP2.
    > > The symptons are:
    > > -I have had to manually set the I.P. address of both computers so they are
    > > within the same workgroup, i.e. 169.254.39.0 for the laptop and
    > > 169.254.39.1
    > > for the desktop.
    > > - On the laptop I can see both computers in the workgroup using explorer
    > > but
    > > cannot access any shared directories/printers on it.
    > > - On the desktop I can see the workgroup but when I click to see what
    > > computers are on it, it gives me an 'workgroup is not accessible' message
    > > after about a minute.
    > > - From the desktop I can ping the laptop computer but when I ping it's own
    > > address there is no reply and it times out.
    > > - From the laptop I can ping itself but when I ping the desktop it times
    > > out.
    > > - The packets received is only about 3-4% of the packets received on both
    > > computers. i.e.889 sent , 18 received.
    > > - I suspect there is an issue with the desktop setup since I can't ping it
    > > from anywhere and can't see any computers here. So I have displayed the
    > > ipconfig /all for the desktop below - I have 1 dial up internet connect, 1
    > > disabled wired LAN connector(currently disabled) and 1 wireless network
    > > adaptor.
    > >
    > > Windows IP Configuration
    > >
    > > Host Name . . . . . . . . . . . . : NAME_DESKTOP
    > > Primary Dns Suffix . . . . . . . :
    > > Node Type . . . . . . . . . . . . : Unknown
    > > IP Routing Enabled. . . . . . . . : Yes
    > > WINS Proxy Enabled. . . . . . . . : No
    > >
    > > Ethernet adapter Local Area Connection:
    > > Media State . . . . . . . . . . . : Media disconnected
    > > Description . . . . . . . . . . . : Intel(R) PRO/100 VE Network
    > > Connection
    > > Physical Address. . . . . . . . . : 00-07-E9-CF-24-C3
    > >
    > > PPP adapter Connect to DigiPlus:
    > > Connection-specific DNS Suffix . :
    > > Description . . . . . . . . . . . : WAN (PPP/SLIP) Interface
    > > Physical Address. . . . . . . . . : 00-53-45-00-00-00
    > > Dhcp Enabled. . . . . . . . . . . : No
    > > IP Address. . . . . . . . . . . . : 210.10.140.244
    > > Subnet Mask . . . . . . . . . . . : 255.255.255.255
    > > Default Gateway . . . . . . . . . : 210.10.140.244
    > > DNS Servers . . . . . . . . . . . : 203.8.183.1
    > > NetBIOS over Tcpip. . . . . . . . : Disabled
    > >
    > > Ethernet adapter Wireless Network Connection:
    > >
    > > Connection-specific DNS Suffix . :
    > > Description . . . . . . . . . . . : D-Link AirPlus G DWL-G510
    > > Wireless PCI Adapter(rev.B)
    > > Physical Address. . . . . . . . . : 00-11-95-E5-3D-27
    > > Dhcp Enabled. . . . . . . . . . . : No
    > > IP Address. . . . . . . . . . . . : 169.254.39.1
    > > Subnet Mask . . . . . . . . . . . : 255.255.0.0
    > > Default Gateway . . . . . . . . . :
    > >
    > > Any help or advice would be greatly received.
    > >
    > > Many thanks.
    > >

    >
    >
    >
    =?Utf-8?B?VGltbWF5?=, Aug 1, 2005
    #3
  4. =?Utf-8?B?VGltbWF5?=

    GTS Guest

    I agree that the ping problem on the desktop indicates a problem. Can you
    ping 127.0.0.1? (This is the loopback address.) If this fails also, it
    may indicate a problem with the TCP stack. If it works, it will tend to
    point to an issue with the NI (sometime this is the result of a firewall
    issue, but you said that's disabled.) Let me know and will try to advise
    further. I don't see any problem with the ipconfig outputs you posted.
    --

    "Timmay" <> wrote in message
    news:...
    > Hi there, thanks very much for your post.
    > I can confirm that both NIC adaptors are set to Peer-to-Peer only. I have
    > changed the IP addresses of both of these to the range that you suggested
    > and
    > still no luck. I also ran the cmd you suggested for guest and
    > unfortunately
    > this made no difference also. I have disabled my firewall settings for my
    > wireless connection so this should not be a problem.


    <SNIP>
    GTS, Aug 1, 2005
    #4
  5. Whoo hoo! Bingo!

    The problem was an older firewall that I had on my desktop computer. I had
    completely forgotten about this until you mentioned it again. I had disabled
    the windows firewall which was linked into the NIC Config but overlooked the
    norton one I had setup a few years ago. I kick myself for not realising this
    earlier. Thank heavens I was able to tap into this newsgroup and get your
    help.

    I can now ping the IP address and can see the shared folders on both
    computers.

    Thanks mate. You have saved me a lot of trouble.
    Appreciate your help heaps.

    "GTS" wrote:

    > I agree that the ping problem on the desktop indicates a problem. Can you
    > ping 127.0.0.1? (This is the loopback address.) If this fails also, it
    > may indicate a problem with the TCP stack. If it works, it will tend to
    > point to an issue with the NI (sometime this is the result of a firewall
    > issue, but you said that's disabled.) Let me know and will try to advise
    > further. I don't see any problem with the ipconfig outputs you posted.
    > --
    >
    > "Timmay" <> wrote in message
    > news:...
    > > Hi there, thanks very much for your post.
    > > I can confirm that both NIC adaptors are set to Peer-to-Peer only. I have
    > > changed the IP addresses of both of these to the range that you suggested
    > > and
    > > still no luck. I also ran the cmd you suggested for guest and
    > > unfortunately
    > > this made no difference also. I have disabled my firewall settings for my
    > > wireless connection so this should not be a problem.

    >
    > <SNIP>
    >
    >
    >
    =?Utf-8?B?VGltbWF5?=, Aug 2, 2005
    #5
  6. =?Utf-8?B?VGltbWF5?=

    GTS Guest

    You're welcome.
    --

    "Timmay" <> wrote in message
    news:...
    > Whoo hoo! Bingo!
    >
    > The problem was an older firewall that I had on my desktop computer. I
    > had
    > completely forgotten about this until you mentioned it again. I had
    > disabled
    > the windows firewall which was linked into the NIC Config but overlooked
    > the
    > norton one I had setup a few years ago. I kick myself for not realising
    > this
    > earlier. Thank heavens I was able to tap into this newsgroup and get your
    > help.
    >
    > I can now ping the IP address and can see the shared folders on both
    > computers.
    >
    > Thanks mate. You have saved me a lot of trouble.
    > Appreciate your help heaps.
    >
    > "GTS" wrote:
    >
    >> I agree that the ping problem on the desktop indicates a problem. Can
    >> you
    GTS, Aug 2, 2005
    #6
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