I've been running the C4000 with a Virgin media hub 3 in modem mode. It's been delivering half a Gig WiFi speeds consistently for over a year, but I've recently upgraded to 1 Gig speeds, with Hub 4 in

I have a C4000 that is plugged into Virgin Media Hub 3 on modem mode. It all worked swimmingly well, until I got a new Dell XPS 15 9500..... The new laptop speeds where atrocious, and after much exper