Plex Wont Cast From Android Device

I can’t seem to get Plex app on my tablet to work, says unable to connect. All other apps work. Netflix, Amazon etc. Plex app is the only one that won’t cast to my TV.

Any ideas?

https://support.plex.tv/hc/en-us/sections/200068143

Yea I have the latest non beta Plex Server. :smile:

Tell us about your network, routers, ap +++ dhcp/subnets and so on