I have 2 PC's in my room that are connected to the modem with ethernet cables, but every so often if my girlfriend and I are playing games online, our internet stops/disconnects and we need to turn the modem off and on again at the wall. We are with sky, we did have Sky fiber and i rang up to complain, they gave us a deal on Sky fiber max, came with a new modem, but we still have this problem, please help!