- I have a VNC server running on a desktop at Physical Location (PL) A. (it’s behind a router, forwarding port 5900 to the desktop). There is no firewall on the desktop.
- For years I have been able to connect to the VNC server at PL A from PL B, and also able to connect to the VNC server at PL A from PL C
- Recently, I have all of a sudden been UNABLE to connect to the VNC server at PL A from PL B, but still able to connect to the VNC server at PL A from PL C. I can ping the router at PL A from PL B fine.
- From PL B I can first connect to a VPN and then connect to the VNC server at PL A, so I assume there is nothing wrong with the setup at PL B
Any ideas of what could be going wrong here? I’m not sure what else to try to get a more intermediate answer besides “ping works, but connecting to the server does not”.
