Re: Setting up you view with powerline adaptors

The freeview should work without an internet connection. You should still be able to get all the freeview channels.

Have you tried a youview reset ?

https://support.youview.com/articles/Self_Service_FAQ/How-do-I-perform-a-maintenance-mode-recovery-1370864319647

I have flagged  this up for an OCE to have a look at.