I have not had the problem solved (bought the box in April ..sigh)
I am still on the third box, it sucks.
All 3 were 500GB 8642
I've had 4 tech's come and measure the signals etc, replace stuff, of course its all fine, and issues remain.
Eventually (June) I had the manager come out with the tech. He watched it all happen and did some investigation internally within Rogers. They did have some internal reports of this (including a Rogers VP who has the problem, but didn't push it ...should be fired since this is such a terrible product)
He says Cisco have reproduced the problem (in June)
waiting for solution and trial/rollout that Rogers will have to do.
I've been back and forth with him on it monthly.
They still don't have a rollout, waiting on results from a Videotron trial of the new software which is supposedly much better. That is the last I heard (in Sept)...though my wife is ready to junk the whole thing so she will likely talk to him again this week.
The shocking part is that there are not a ridiculous number of complaints about this beyond the 5 or 10 on this forum.