I have a peer to peer network of about 85 computers. All are on Win XP pro some use Norton anti virus, some Norton Internet Security, some Avg Free. Some are on windows firewall some on nortons. Problem is up until a few days ago I could see all computers in network places and under add a printer. Now I can't see any. This happens when I look at any computer on the network. Previous shares still work just can't see network so I can't share anything new. Router is Netgear FVS318 and I am using static addresses on all computers. I can't think of any changes that I have made to cause this problem.