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LAN/Wireless Broadband/Internet Conflict

This is a discussion on LAN/Wireless Broadband/Internet Conflict within the Networking Support forums, part of the Tech Support Forum category. I have a wireless LAN (Linksys WRT54GS) at home with 3 nodes and (until recently) a shared ADSL2 connection. However


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Old 08-09-2010, 06:59 AM   #1
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I have a wireless LAN (Linksys WRT54GS) at home with 3 nodes and (until recently) a shared ADSL2 connection. However I moved house and had to switch to wireless broadband via a USB modem.

Since the Linksys does not have a USB port I need to setup ICS on XP in order to share the internet connection.

The USB device installs ok on my main PC but I need to disable the Local Area Connection (my wireless LAN) in order to access the internet. As soon as I enable the LAN connection I lose internet access.

Clearly my wireless broadband connection and the LAN connection need to coexist in order to share the internet connection across my network.

Networking is (clearly) not my forte and I would appreciate any help you may be to render.

Regards,
Colin

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Old 08-09-2010, 08:35 AM   #2
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You need to configure the wireless adapter for automatic and then configure ICS. The wireless adapter being enabled should not affect the USB.

I'd consider resetting the stack if this keeps happening.


TCP/IP stack repair options for use with Windows XP with SP2/SP3.

Start, Run, CMD to open a command prompt:

In the command prompt window that opens, type type the following commands, each followed by the Enter key:

Note: Type only the text in bold for the following commands.

Reset TCP/IP stack to installation defaults, type: netsh int ip reset reset.log

Reset WINSOCK entries to installation defaults, type: netsh winsock reset catalog

Reboot the machine.



I'd also like to see this when you have the wireless disabled and again when you have it enabled, both with the USB connection connected.

Hold the Windows key and press R, then type CMD then press Enter to open a command prompt:

In the command prompt window that opens, type type the following command:


ROUTE PRINT

Right click in the command window and choose Select All, then hit Enter to copy the contents to the clipboard.
Paste the results in a message here.

If you are on a machine with no network connection, use a floppy, USB disk, or a CD-RW disk to transfer a text file with the information to allow pasting it here.

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Old 08-09-2010, 11:16 PM   #3
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Thanks Johnwill. I will try that tonight and let you know.
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Old 08-10-2010, 02:00 AM   #4
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Johnwill,
As requested. This is before making any changes ...

Wireless disabled:

C:\>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 a0 d5 ff ff ae ...... Sierra Wireless HSPA Network Adapter - Packe
t Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.220.133.36 10.220.133.36 25
10.220.133.36 255.255.255.255 127.0.0.1 127.0.0.1 25
10.255.255.255 255.255.255.255 10.220.133.36 10.220.133.36 25
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
224.0.0.0 240.0.0.0 10.220.133.36 10.220.133.36 25
255.255.255.255 255.255.255.255 10.220.133.36 10.220.133.36 1
Default Gateway: 10.220.133.36
===========================================================================
Persistent Routes:
None




Wireless enabled:

C:\>route print
===========================================================================
Interface List
0x1 ........................... MS TCP Loopback interface
0x10003 ...00 a0 d5 ff ff ae ...... Sierra Wireless HSPA Network Adapter - Packe
t Scheduler Miniport
0x10004 ...00 1e 8c d2 99 5a ...... NVIDIA nForce Networking Controller - Packet
Scheduler Miniport
===========================================================================
===========================================================================
Active Routes:
Network Destination Netmask Gateway Interface Metric
0.0.0.0 0.0.0.0 10.220.133.36 10.220.133.36 25
0.0.0.0 0.0.0.0 192.168.1.1 192.168.1.100 20
10.220.133.36 255.255.255.255 127.0.0.1 127.0.0.1 25
10.255.255.255 255.255.255.255 10.220.133.36 10.220.133.36 25
127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
192.168.1.0 255.255.255.0 192.168.1.100 192.168.1.100 20
192.168.1.100 255.255.255.255 127.0.0.1 127.0.0.1 20
192.168.1.255 255.255.255.255 192.168.1.100 192.168.1.100 20
224.0.0.0 240.0.0.0 10.220.133.36 10.220.133.36 25
224.0.0.0 240.0.0.0 192.168.1.100 192.168.1.100 20
255.255.255.255 255.255.255.255 10.220.133.36 10.220.133.36 1
255.255.255.255 255.255.255.255 192.168.1.100 192.168.1.100 1
Default Gateway: 192.168.1.1
===========================================================================
Persistent Routes:
None


Thanks for your time.
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Old 08-10-2010, 02:58 AM   #5
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The Linksys does not have a USB portand I need to setup ICS on XP in order to share the internet connection. The setup was working fine for about 1.5 months....


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Old 08-10-2010, 06:26 AM   #6
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Johnwill,
One more potential clue:

When I enable the wireless LAN a new network connection pops up for the Internet Gateway, and it is disabled. I can't enable it. When I disable the LAN connection it disappears again.

Thanks,
Colin
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Old 08-10-2010, 09:43 AM   #7
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Dumb question, did you try disabling the wired connection and leaving the wireless one enabled?
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Old 08-11-2010, 12:10 AM   #8
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Hi Johnwill,
Yes - tried that. In fact that is how I'm running most of the time - with the LAN disabled.

Did you see the output from the route print above? Does that offer any clues?

Appreciate your support,
Colin
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Old 08-11-2010, 06:28 AM   #9
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Don't know why this is happening, it's not normal behavior...
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Old 08-11-2010, 10:54 PM   #10
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Thanks anyway Johwill.
All the best.

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