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Force use of wireless, not wired network connection.

Last response: in Networking
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December 8, 2011 5:04:19 PM

I use a Windows XP laptop at work that has wired & wireless ethernet connections. The wireless connection allows access to the internet but not my company's LAN, and the wired ethernet connects to the LAN. Is it possible to force my laptop, or just a specific browser like Firefox to connect to the internet using only the wireless connection?

Currently, whenever I plug in the ethernet cable or enable the ethernet conneciton, I lose my wireless internet connectivity. I do need to be connected to the company lan while I use the wireless network for internet access. Is it possible to use one nic for the internet and one for access to the LAN?

Both nic's are assigned by DHCP, so I don't think I can mess with their default gateways. I've already gone into ncpa.cpl and opened the "Advanced Settings" menu to make sure my wireless network is at the top of the list of connections.

I'd appreciate any help offered. I've listed the results of ipconfig /all and route print below

-Mike

  1. Ethernet adapter Wireless Network Connection:
  2. Connection-specific DNS Suffix . :
  3. Description . . . . . . . . . . . : Intel(R) Centrino(R) Advanced-N 6205
  4. Physical Address. . . . . . . . . : A0-88-B4-91-E7-58
  5. Dhcp Enabled. . . . . . . . . . . : Yes
  6. Autoconfiguration Enabled . . . . : Yes
  7. IP Address. . . . . . . . . . . . : 192.168.200.123
  8. Subnet Mask . . . . . . . . . . . : 255.255.255.0
  9. Default Gateway . . . . . . . . . : 192.168.200.1
  10. DHCP Server . . . . . . . . . . . : 1.1.1.2
  11. DNS Servers . . . . . . . . . . . : 69.145.248.4
  12. 69.146.17.3
  13. 69.146.17.2
  14. Lease Obtained. . . . . . . . . . : Thursday, December 08, 2011 11:03:31 AM
  15. Lease Expires . . . . . . . . . . : Thursday, December 08, 2011 12:03:31 PM
  16.  
  17. Ethernet adapter Local Area Connection:
  18. Connection-specific DNS Suffix . : xxxx.yyyyy.net
  19. Description . . . . . . . . . . . : Intel(R) 82579LM Gigabit Network Connection
  20. Physical Address. . . . . . . . . : 2C-41-38-0C-4F-BD
  21. Dhcp Enabled. . . . . . . . . . . : Yes
  22. Autoconfiguration Enabled . . . . : Yes
  23. IP Address. . . . . . . . . . . . : 10.20.11.248
  24. Subnet Mask . . . . . . . . . . . : 255.255.0.0
  25. Default Gateway . . . . . . . . . : 10.20.1.1
  26. DHCP Server . . . . . . . . . . . : 10.20.1.107
  27. DNS Servers . . . . . . . . . . . : 10.20.1.102
  28. 10.20.1.107
  29. Lease Obtained. . . . . . . . . . : Wednesday, December 07, 2011 11:00:22 PM
  30. Lease Expires . . . . . . . . . . : Wednesday, December 14, 2011 11:00:22 PM

  1. ===========================================================================
  2. Interface List
  3. 0x1 ........................... MS TCP Loopback interface
  4. 0x2 ...a0 88 b4 91 e7 58 ...... Intel(R) Centrino(R) Advanced-N 6205 - Packet Scheduler Miniport
  5. 0x3 ...2c 41 38 0c 4f bd ...... Intel(R) 82579LM Gigabit Network Connection - Packet Scheduler Miniport
  6. ===========================================================================
  7. ===========================================================================
  8. Active Routes:
  9. Network Destination Netmask Gateway Interface Metric
  10. 0.0.0.0 0.0.0.0 10.20.1.1 10.20.11.248 20
  11. 0.0.0.0 0.0.0.0 192.168.200.1 192.168.200.123 25
  12. 10.20.0.0 255.255.0.0 10.20.11.248 10.20.11.248 20
  13. 10.20.11.248 255.255.255.255 127.0.0.1 127.0.0.1 20
  14. 10.255.255.255 255.255.255.255 10.20.11.248 10.20.11.248 20
  15. 127.0.0.0 255.0.0.0 127.0.0.1 127.0.0.1 1
  16. 192.168.200.0 255.255.255.0 192.168.200.123 192.168.200.123 25
  17. 192.168.200.123 255.255.255.255 127.0.0.1 127.0.0.1 25
  18. 192.168.200.255 255.255.255.255 192.168.200.123 192.168.200.123 25
  19. 224.0.0.0 240.0.0.0 10.20.11.248 10.20.11.248 20
  20. 224.0.0.0 240.0.0.0 192.168.200.123 192.168.200.123 25
  21. 255.255.255.255 255.255.255.255 10.20.11.248 10.20.11.248 1
  22. 255.255.255.255 255.255.255.255 192.168.200.123 192.168.200.123 1
  23. Default Gateway: 10.20.1.1
  24. ===========================================================================
  25. Persistent Routes:
  26. None
a b F Wireless
December 8, 2011 8:07:40 PM

I believe the problem is that you have TWO default gateways (0.0.0.0), but the one w/ the higher priority (192.168.200.1) also has a higher metric (meaning, the longer route), so Windows is always choosing the LAN gateway (10.20.1.1) w/ the shorter route (despite having a lower priority). You need to insure the gateway you want to use has the lower metric (or at least the same metric, presumably Windows will then honor the priority).
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a c 79 F Wireless
December 8, 2011 8:39:28 PM

for security reasons your company might not want you to be able to have access to the internet while connected to the network.

talk to IT to receive approval and have them set it up, otherwise it could be a cause for termination

my company fired two people that played around with the computer settings in that manner
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