Exactly the same problem here (channels setting up) with the 360 mini box and the sky sports package. Main box is fine.
Tried contacting VM. They passed it on to another dept and will call back (heard nothing for a week).
Tried powering the box off at wall for 30 seconds.
Tried resetting the box and that didn't work.
Cables all seem fine. WiFi signal is good and both boxes on same network.
Still within my 14 days to cancel the upgrade so need to decide soon.
Any other options to get this fixed?
Thanks