I just recently set up my two computers as a network, using an WRT54G. Computer A is hardwired to the router, and computer B is wireless. The main purpose of this network was to share a laser printer that is attached to B, and to allow file sharing. It took me about a day, but I got the whole thing set up, and it was working just fine. That was about 3 weeks ago. Today the user on A went to copy a file into the shared folder on B, and got an error message. Don't have the exact message. User on A is also not able to print to the laser. Trying to figure out what's wrong I went to My Network Places on both machines, and neither on is "seeing" the other one. (Both are XP Home SP2) My question is this: If everything was set up and working then what could have changed so that neither computer can see the other anymore?