Ok, here's the problem, I have a router that is wired directly to my laptop (not mac). The laptop works fine when wired or wireless, and have had 3 different routers that have worked fine with it. My girlfriend has a iMac G5, and at random the router drops the connection completely on her's and my machine. At first I thought it was just a bad router, but she had to send in her mac for repairs recently and the signal dropping suddenly stopped. She got it back the other day and all of a sudden the router starts acting up again. The router is a WRT54G, and her mac is hooked up wirelessly. Does any one know what could be the problem, sorry if that is too long and vague.