Recently lost all network shares

Hi

 

I have a home network with 7 PCs, network printer, NAS and router. The PCs are a mixture of XP SP3, Vista, and Linux (Fedora 11). All Windows machines have NetBIOS on TCP/IP enabled and computer browser service running, and all are running NIS, either 2010 or 2009 (the machines I use for development are still on 2009 because SONAR and my development tools are not in total harmony).

 

Last week I was dragging some local files to a network share and the remote folder window suddenly disappeared. All my network places disappeared. None of the PCs in the network could see any remote shares. The browstat utility (one of the Windows support tools) told me that there was no browser running on the domain. Despite numerous reboots, windows fixups, running with the firewall disabled, etc. that situation has remained until today.

 

Every share is accessible if addressed explicitly by name, so we are not at a standstill. But try as I might, I cannot get shares to appear in any PC's network places, nor can Samba on Fedora see them. The Norton network map is correct, and all nodes in the network are fully trusted.

 

I am posting this scenario here because it seems to replicate exactly the problem described in this thread:

     http://community.norton.com/t5/Norton-Internet-Security-Norton/NAV-2009-Networked-Computers-Disappear-from-quot-My-Network/td-p/55790

which never seemed to be resolved. But that was almost a year ago; no substantive changes have occurred in my network for several months and this problem arose only last week. Was there an instant update delivered recently that might have caused this?

 

Cheers

Trevor