and select all programs>accessories and click on 'Command prompt'
When the command prompt box opens, type this:
and press the enter key. Now type this:
and press the enter key. Your IP address should now show as 192.168.2.xxx your subnet mask should be 255.255.255.0 and your default gateway should be 192.168.2.1
Assuming those values are showing, your ADSL connection is working via the base station. Now type:
and press the enter key.
Come back here if your computer still can't connect.