I have a Linksys wireless router with a PowerMac G5 connected by ethernet and a MacBook connected by Airport. Both comps can connect normally to the internet, but they can't connect to each other. Personal File Sharing is switched on on both machines. The other machine's icon appears in the Finder>Network list, but when I try and connect I get an error message that the server is offline or unavailable. I've repaired both machines with DiskWarrior, repaired permissions, tried deleting multiple preferences, etc. The weird this is that before the MacBook I was using an iBook completely successfully with the same router & setup. This had been going on for weeks now and is driving me nuts! ANY ideas would be really gratefully received - thanks!