Plex has worked on my TV without problems for many months, but tonight, I upgraded to Plex on my Windows computer to Version 22.214.171.12439 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?