My daughter has flown the coop, and today I installed her desktop (which has a wireless card) in her new flat. It worked perfectly on my home network with a Linksys router with the gateway address 220.127.116.11.1 and DHCP enabled; however when I powered up at the new location, the desktop recognised the wireless network and prompted for the WEP, which it accepted, but then returned the old "limited or no connection" message. The loopback ping is fine, but I get a "destination not reachable" response when I try to ping the router. New network has three PCs working fine, D-Link DSL 504G router, all XP home (as is ours), all is the same except that the gateway address for the new router is 10.1.1.1, also DHCP enabled. I've looked at similar questions, but nothing helps. My kid's beginning to think I may not be perfect after all. Any suggestions?