This is a similar problem to one I saw elsewhere on here. I have three computers on my Home Network - mine, my wife's and a spare that we have. All are running XP Pro SP2 (fully updated). My router is a NetComm 1300Plus4. Until recently all was fine. However, now I can read both the other computers from my own, but get a message telling me that I may not have permission to access my own from either of the others - Access is denied! Thus far, I have run the Wizard and created a Network Setup Disk and that hasn't worked. I have run the Wizard individually on each of the three machines and that hasn't worked. I have checked the Firewall settings on all three and they are the same. Any ideas at all, because I am now totally at a loss!