All of the above. Hope Virgin (and BT) are reading this...
Have just suffered a whole week of pain on Virgin XXL 50Mbps + Superhub. This morning, a week long constant disconnection appears to have finally ended. Things were so bad this last week that i had yet again been forced to deploy a 3G modem (just renewed the T-mobile contract on that for another year as a direct consequence of Virgin's failings).
This is not the first time of course - this has been a running debacle with Virgin ever since i got the Superhub at the beginning of the year. A combination of faults not helped by the Superhub's poor routing capability with multiple users on our network. I completely agree with comments here suggesting that Virgin should supply an entirely separate DOCSIS 3 modem for the job. Indeed they once did and i have tried endlessly to persuade Virgin to give me one of the original beasts. But alas Virgin seem unrepentant with their Superhub strategy, although i dare say it cannot be saving them any cost at this stage.
My Superhub firmware now at R26 via automated backdoor software update by Virgin. Strange when you consider that remote admin has been switched off. That worries me because it means that Virgin (or a hacker) can get unauthorized access to my network simply by hacking the router, and there is apparently nothing i can do to stop it. Add that to the list of failings if you will.
R27 now promised in June claims to be able to deploy the Superhub in bridge mode equivalent to a pure DOCSIS 3 modem, at least we are led to believe, allowing us punters to use our own routers again to secure our networks properly and maintain local uptime to even when the broadband is down for maintenance.
It remains to be seen whether R26 allows improved connectivity for multiple users. It is certainly true, even when plugged into gigabit switch, that users still get considerably less than 50Mbps download speeds and upload speeds are still pretty dreadful. But i reiterate, for any Virgin techs reading this, give me a seperate modem and that's not Virgin's problem anymore.
Finally lets not forget that BT must be looking closely at Virgin's experience, because word has it they are sticking with separate modems for their 40Mbps (with 10Mbps upload) Infinity service which is rolling out hot on the heels of disgruntled Virgin customers.