Upgraded to Plex Version 184.108.40.20639 but cannot stream Plex to my TV anymore but works on my desktop
Plex has worked on my TV without problems for many months, but tonight, I upgraded to Plex on my Windows computer to Version 220.127.116.1139 and now I cannot stream Plex to my TV anymore. On my TV, I just get a message that says something like can't find the server(???), then 'Retry'. But clicking on 'Retry' does not make Plex work on my TV. Normally, when I have previously got this error message, I had forgotten to start Plex on my desktop computer (the Plex server).
But Plex works on my desktop, and I get an error 'Not available outside your network. Your server is signed in to Plex, but is not reachable from outside your network.' I get a red '!' next toe Remote Access.
I think that I always got a little green icon next to Remote Access previously.
I have rebooted both my router and my computer, but I get the same message. I have also looked at Advanced Settings in my router, but I can't see where it would indicate UPnP or NAT-PMP.
How do I get remote access to my TV from my computer again?