I have a network with two computers, one wired and one wireless. All was working fine until recently the wireless computer was unable to access the other one but still access the internet. Both have XP home, and are connected with a wireless router. Both are in the same workgroup, both subnets and gateway IP's match. Both can ping each other. The wired can access the wireless files, but when the wireless tries to access the wired it gets a "..not accessible. you might not have permission to use.." error. Guest account is active on the wired, and both are logged in as administrators. I have also tried turning the firewall off on the wired. Any ideas?