This is the just what I had figured with our own system. We have suffered with this since the new VF Box came on sale last year, and moaned repeatedly on this forum about.

We find it predominantly TV1 issue, which is the only station we tend to watch. We are on ethernet with the VFHub setup through VF cable in central Christchuch.

It can take us up to 10 / 15 minutes to connect when starting up, and that might also require a few reboots. Many times its  a black screen that eventuates in a Channel not subscribed response. Something that never goes away and we reboot the machine. Thank goodness we can rewind back to the beginning of a program.

We even sometimes get a network connectivity message during programs, but the program must be buffered and still continues. 

If the box starts on another channel it seems to connect immediately. 

ZollyMonsta:

 

Hi Danoz..   Changing channels triggers a connection back to Kaltura to ensure you are subscribed to the channel, plus also to obtain decryption keys.  So if your setup is delaying/blocking a response on these calls, you'll get network connectivity or other errors.  It would be worth trying via ethernet direct to the Unifi switch.. and then also the Fritz to see where the issue lies.

 

Cheers,
Grant