I have a 3com OfficeConnect 3c857 router, which also is used for DHCP server, I can connect to the internet when in Windows, but in Ubuntu I get and popup saying the network is connected, and i can se that i get an IP, when using the GUI, but ifcinfig doesn't show it.

I have tried putting the computer directly in the modem for the internet, and it get's an IP and there connection to the internet.

The only difference I have noticed is, that when behind the router, the DNS is the same as the router's IP.

I run a dual boot Vista / Ubuntu 8.10, both are 64bit.

Anyone who have experienced anything like this ???