I have two Server 2003 r2 servers in a workgroup called WORKGROUP. However, they do not appear in the network neighborhood and I have a vendor that insists that it must appear there for their backup solution to work.
I have done the usual things: computer browser, workstation, and server services are ON; NetBIOS over TCP/IP is ENABLED. Firewall is turned OFF. NIC drivers updates. Windows OS updated. I have looked for a third party firewall that may be interfering but cannot find one. There is no endpoint security software installed that might be causing the issue. I have scanned both machines for malware/viruses (NONE found).
Both servers are configured to use a WINS server. Both servers appear in the WINS server tables.
DNS is configured correctly (as far as I can tell).
I can open a command prompt and ping the servers using their servername. I can open an explorer tree and type \\servername and get to the shared folders AND the server will appear in the workgroup until I close the window.