On my G5 2.7, the Time Capsule no longer responds. The wireless still sees the neighbor's network, so I know that is working, but I cannot get online or see the NAS. I suspect an upgrade may have been installed from the MacBook in the other room that cut off my PowerMac. Has anyone else had this happen? I am using WPA2, should I try downgrading everything to WPA or WEP, or is this a protocol "improvement" that has locked it out for good?