My parents have their network set up as such: a Mac mini in the family room, connected via ethernet to a Belkin router (which is connected to Comcast cable modem); an iMac C2D in my Dad's office; and me on my PowerBook G4 in various locations throughout the house whenever I happen to visit. It's set up with a WEP password. The network works well enough... until someone logs on using the mini. Then the Belkin router kicks off any other computer connected to the network... well, first the signal remains, but nothing is transmitted. If I turn off the AirPort and turn it back on, the network is nowhere to be found. Any ideas?