I have Comcast high speed internet. 6 MB connection, but i am really gertting 10 MB which i am very pleased with. I play xbox live and PC online games. I've played on multiple computers on the same connection. Every time we are playing our games it lags on us. I check the modem when the games lag and the orange button for PC activity stops flashing but everything else is still flashing. I called Comcast and they say that there is nothing they can do. I think our internet is just inconsistent. What would be a cause for this problem?