I have been having problems with my superhub restarting and porperfamance whilst playing World of Warcraft.

After investigating it my self and getting some bad advise from virgin techs telling me to disable the firewall of the router as it was not compatible with software firewalls running behind it. Have been able to also run the router at 300mb wireless with out drop outs.

I have discoved that disabling of UPnP stablized my line, improved ms to World of Warcraft server, and reduce my lag.

To disable UPnP, concet to your superhubs IP, login, access advance view.
There will be a menu Item Labeled UPnP, click here and uncheck enabled + save.

Disabling of UPnP may cause the blizard updater to complain that its unavalible but you should still be able to get/update world of warcraft.

Hope this helps to stem the amount of problems with Virgin and improve your experience in WoW