Server Version#:1.6.5 /windows
Player Version#: 2.1.3
I have an LG B6 and cannot connect to Plex using the app. I get the “Plex is unable to start” error and reseting doesn’t fix it. It works fine if I use the XPlay app or Android app and cast to Chromecast. Anyone else with this issue?
“Plex is unable to start” sounds like the app itself, not the server connection. Have you tried uninstalling the app completely and redownloading it to the TV?
Yep have done that twice.
Still can’t get it to work.
There are at least 10 threads about this issue with Plex not working on LG TVs since 2018. I have the exact same problem as OP. Plex just hangs on startup and then I get error -337, it’s very frustrating. Works fine on consoles, web apps and the iPad app.
Tried multiple servers on the same network all connected via LAN.
The Plex team surely must be aware of this issue but apparently doesn’t want to do anything about it. I’m not trying to be an idiot, but Xplay works fine - every time. So clearly it should be fixable.
I hope they will either fix this problem or just pull the app from the LG store as it has no business being downloadable when it just doesn’t work.
Yeah even the built in DLNA on TV can connect so it is 100% something wrong with Plex app.
I may just bite the bullet and buy XPlay cause who knows when it will be fixed.
Not sure what is happening here but it works fine for me. Can you access the LG plex app settings?
Nope. I launch app, it has the big Plex logo load screen, hangs for a minute, then the unable to connect error comes up. Then you click to reset and it just loops and does the same thing over and over.
It very rarely gets past the Plex logo, so it’s hard. Provided I could get in, what would I be looking for in the settings?
I’ve manually specified the IP of the server and allowed unsecure connections, but those settings didn’t help.
Ok, go to your server and delete the device/LG TV in authorised devices and relink your TV.
I gather you are using Preferred Secure connections
I am.
Removed the TV from the authorised devices list, the app still can’t connect 
Settings main/ scroll to bottom.
Allow fallback~ Always
Prefer insecure connections on same network~on same network as server
Have you tried using a Public DNS on your TV like 8.8.8.8
These settings you are talking about. Are they server-side or the Plex TV app? I still can’t launch the app.
I have tried a DNS like 1.1.1.1
Plex app settings on LG TV.
Which model LG TV, WebOS version
LG C8 OLED.
WebOS 4.1.3-5620
LG B6, webOS 3.3.1-2030
Something a miss here as Iam using B8 WebOS 4.1 so the C8 should have a LG update. Please check you have your LG TV updated to latest.
The B6 is a 2016 model so not sure but check.
If you have not updated do so and then Try a re install of LG app. Remember to restart your TV from the power point pause a couple minutes between uninstalling and installing. Delete your device again also.
TV says no update when I check. I’m in Denmark so it may not be the same here.
It’s the newest one on LG’s website too.
