FireTV 2nd gen, Plex Player not connecting to server over LAN

Plex Players
,
1

Server Version#: Version 1.28.2.6151
Player Version#: 9.8.2.35221
Player Device: Amazon FireTV 2nd Gen
Player OS: Fire OS 5.2.9.1

For no reason, my FireTV 2nd gen can no longer connect to my plex server (both on my home LAN), and gives a warning triangle within the Plex player app

I have Nvidia Sheild Pro, PC’s and newer firesticks that can all connect fine. I haven’t changed any settings on the plex server and double checked firewall ports. This has only happened within the last 7 days

Any ideas?

Ttied flushing the cache of the player app
Ttied uninstalling / reinstalling the player app

UPDATE 1
Same thing on my Firestick 2nd Gen
Fire OS 5.2.9.0
Plex Player: 9.8.2.35221

UPDATE 2
Rolled back Plex Server to 1.26.x and Firestick / FireTV still not connecting to my Plex Server (PC and Nvidia all fine)

2

Found the solution

When the Plex Player installed the new version on my Amazon Firesticks and FireTV’s, it defaulted to Advanced > Allow Unsecure Connections = NEVER

In the player app, I went into SETTINGS then ADVANCED and changed ALLOW UNSECURE CONNECTIONS to “On Same Network” and everything worked

I never changed this setting originally. What a fecking pain in the ■■■■