I have an office with 6 computers, all connected via a peer-to-peer arrangement with a router allowing Internet access. The computer we refer to as our server is actually a computer running Vista with shared folders in the Public user. We have had no problem for some time now running this arrangement. The other five computers are all running WinXP (4 Pro, 1 MCE).
I have replaced one of the XPPro machines with a Win7 machine. All use static IPs on the local network to facilitate remote networking, and I have verified that there are no IP address conflicts. All have the same, unique, network name. When I turn on the Win7 machine, all works well for a short while, but soon, the shares become unavailable to the other computers. A search for the "server" finds it, but indicates that authorization to access it is lacking. Any ideas?