In Search Tab > Artists, I search for an artist. It finds the articst and indcates the # of albums. I tap on it, and it says “unable to browse music”

However, if I go to Search Tab> Album, it lists the albums, and then I can go in and play it.

Similarly, When I’m in the “Browse” tab, I see all the integrated sources (e.g. sonos radio, amazon music, pandora, plex). 

When I tap on plex. I also get the “unable to browse music”

Have you had Plex working previously within the Sonos App with the current setup? The only thing I can think of is that ‘Nat Loopback’ is not working on the router, as I understand that Sonos/Plex use this to get access to the Plex server files - but not sure how you might resolve it?

In some cases I’ve seen users say they needed to enable both UPnP auto-port-forwarding, aswell as manually forwarding their 34200 TCP port, but I seem to recall that was more about remote access, but it maybe required in this instance too.

I personally have/use a (lifetime) Plex pass too in my own case, as I use Plex when travelling, but I had Sonos working prior to that, on a monthly Plex pass, but I’m not sure if a Plex pass is still even needed these days for use with Sonos. Its been a while since I setup and started using Plex, but it is working okay here - FWIW I note aswell, that there has been a Plex server update in the last day or two so see if that may assists too.

Thanks @Ken_Griffiths 

ill give manual porting a shot! I’ve recently had to download music I purchased from Amazon, given changed to the Prime. 
 

I use Eero as my router and saw something about that potentially being an issue. Was hoping for a workaround…

It’s quite simple to solve

just reset your library to default

after that you can opt out 

good luck