Ok this one is driving us nuts.
Our client recently upgrade their entire PC suite and we have installed (All Dell Servers and Client PCs) an SBS2011, 2 x Terminal Servers (as they were called) and a File Server.
SBS and File servers are effectively Server 2008 and the two terminal servers are running Server 2012R2.
All clients are Windows 7 - except two which are Windows 8.1
Here's our issue - Sometimes (In particular the Win 8 clients) some clients can see all the servers and client PCs in the network view of Windows Explorer and sometimes they cant.
When you go into Windows explorer and click network the odd few clients and servers drop and then other times they all do, but often only a few show and the rest are not visible (Clicking refresh sometimes drops the odd client in but often does nothing). You can get to them with a UNC path but some users don't like this and its a problem if the program doesn't allow you enter a UNC path in the browse network path when opening a file across the network.
Just to reiterate, this seems to happen more on the Windows 8.1 clients, the odd time on the Server 2012R2 servers and hardly ever on the Windows 7 machines.
Computer Browser is started across ALL clients and servers
Network location awareness services is started across ALL clients and servers.
Any help would be much appreciated.