Hi. I'm having some serious issues with my WMP54G (driver 2.X, adapter is version 4, the slim one). While I was away at work, my entire network at home somehow went down. Not sure how, so I reconfigured my router for 128-bit WEP. My brother's computer is using a WUSB54G. Entered a key, he's back on. My dad is using a Motorola 802.11g compatible adapter, entered a key, he's back on. The family computer, which is a mere 15 ft away and on the same floor as the router (only one doorway impedes the router and the NIC) cannot get back on. The NIC cannot connect to the network. It has WinXP SP2 and I'm using the Windows WZC to connect (and was beforehand, when it was working). When I give it a new key, it tells me it's trying to connect and nothing happens. When it does "connect", it has an invalid IP address (00.00.00...) or it has the 169.54XXXX IP address. It's not getting an IP from the DHCP. I know our neighbors have wireless networks too as I can normally see them before the problem. I noticed that I can't now either (not sure if this has anything to do with it, but it might help). Any help would be appreciated.