While I have not tested this theory yet. But I think it might be related to secure HomeKit router.
The DVR, iPad and iPhone clients do not have issues with TVE channels. It is just my two AppleTV’s which are home hubs and therefor they have restrictions on access to the internet. This might explain why only these two devices behave differently.
I have not tried this because of the nasty warning message about removing and re-adding HomeKit devices across the whole house.
Unfortunately, I cannot see the access settings for these AppleTV’s for some reason. The choices are:
Restricted - only local network access
Auto - determines which connection it lets out
Unrestricted- free reign.
One of my AppleTV’s worked for a few hours without me doing anything. This is all very strange.
Is anyone else running Secure HomeKit router and want to chime in?