Seph,
Thanks again for your response, much appreciated. I think we've narrowed it down to a faulty Superhub then which will hopefully be easily resolved following a swap out when I get the replacement Superhub.
I've just had another look on the VM forum and noticed this thread for someone who seems to be having a similar issue -
http://community.virginmedia.com/t5/...ng/td-p/925613
On that, Ray M of the Forum Team states they are aware of the rebooting issue and have escalated it to Netgear. So if the new Superhub doesn't work, it's possible that there is some sort of firmware bug causing this to happen as it's been reported by a number of people on the VM forum now.
Thanks again for you help and hopefully the new Superhub will bring an end to my issues.
Cheers
Superblade7