The cause of this problem has been found by me. Every 6 hours the TiVo makes a timed connection to a Virgin Media Server. and live, recorded and recorded video freezes. Virgin have not figured this out yet. It needs the server software debugged.
What is worse some times the STB will crash leaving a standby box on. The guide menu is blank (fixable), the favourites are deleted ( not fixable).
Temporary fix. Do a manual connection.
press HOME| Help & settings | settings| network | Connect to Virgin Media and watch the page till it says loading 1%
It may take up to 1 hour. When finished repeat until loading runs through from 1% to 99% in less than 5 mins. Then do a hard reboot by switching the power off at the back of the box for 30 secs. Eeeevvvvveeennntually the Guide menu will re-populate.
So far I can't get the favourites to reload. Would VM please store these on the server and reload them on each reconnection please.
I have had engineers out previously tightening connections to no avail. Can't talk to a call centre now. Any engineers out there?
Ian