Hi and
to the forums.
Unplug ethernet cable from your PC so it is not connected.
On your PC, point to start right click on My Computer. Select Properties.
Click on the hardware tab, then Device Manager.
Under Network adapters there should be one listed 10/100 or something like that.
Delete it.
Reboot your machine.
Windows should automatically find your LAN connection port.
You may be asked to provide a drivers CD if your ethernet card needs one.
Now switch everything off. Turn on modem. Wait for it to initialise. About 1 minute.
Then plug in ethernet cable to PC and boot up PC.
Should work for you.