Vlc might be intercepting the feed and was set to pop up video try force stopping and resting the vlc app if you have it installed.
I need a suggestion to mod it because it will cost me $2 because it requires a subscription before you can play any channels. The voucher pin only works once even on the same device. Thanks in advance I hope someone knows something.
This problem alone would make me try something different.
use the app tivimate it's made for huge screens