The largest unsolved problem on the internet. Hard to find a good answer via a Google search, so I turn to the FT techies. I am running XP on all my home netwrok machines. A cable modem to a wireless router. All three machines have been able to access the internet fine, but now my laptop is unable yet the other two machines are fine. I have a good wireless connection on the laptop but I noticed the IP adress of the laptop appears in a different range which I think is invalid. I believe this is assigned by the DHCP service which is running on the laptop. I have used the IPCONFIG /RENEW command without success. I even re-installed XP. Any suggestions on how to proceed?

Thanks.