Wireless connects, but can not "reach" internet

[sgrinavi]

I am having a problem connecting one of my computers to the internet even though it connects just fine to the wireless network. I can repair/renew the connection without returning an error. The problem started shortly (not immediately) after I restored the system with a clean OS install (XP32 Home)

-Linksys WRT54G connected to a Comcast modem running DD-WRT
-4 computers connected to the wireless and an xbox360 hardwired to it
-2 of the computers have identical and generic linksys PCI cards (one of these is the problem child)
-1 of the systems has a netgear USB adapter
-1 is a Dell laptop with built in wireless

All the systems talk to each other without problem.


I think I have tried just about everything:

I have removed and reinstalled NIC drivers
The system works fine, connects to the internet, when I hardwire it
I have the TCP/IP properties setup identical to the working systems
I have used the DHCP and static IPs.....

Any ideas?

 

[Fardringle]

When connected using wireless, can the problem computer see other computers on the network, or is it not able to access anything at all? (You said all systems talk to each other without problems, but I wanted to make sure this is the case with the "problem child" while on wireless.)

If it can't see anything at all, you're probably not really connected to the wireless properly (check your encryption key and verify that you don't have the system blocked using MAC address filtering on the router) and you are likely getting invalid IP address information on the wireless adapter.

If it can access the other computers but cannot access the Internet, then you likely have bad DNS/Default Gateway info, or an issue with permissions on the router for this machine.

 

[JackMDS]

May be this can Help, http://www.ezlan.net/wireless.html

Otherwise be careful when you kick it out the Windows. Yyou may injured someone standing outside and it would cost Millions in compensation awards.