So, i built this PC at Microcenter a year and a half ago and man it was such a kick ass 2000 dollar gaming PC. All of the games i've downloaded including Call of Duty, the Division, Ark and other types of games were running smooth and over 50 fps. However, this issue came up to me all of a sudden where games are now running under 10 fps on a GTX 970 16 Gb Ram PC. It all started like 3 months ago. I tried resolving the PC by recovering it and starting it fresh again, but it's still not working. I took it back to Micro center and somehow the games worked properly over there on their network, so i brought it back home and it was lagging again. The day after, i give it to them to run a diagnostic on it and they figured everything was working properly and it could be the firewall on the PC. I tried both turning on and off the firewall and unistalled the antivirus (Kaspersky) and still no effect and games are still running very slow. Left 4 dead is running on 8 fps max. So in conclusion the issue is not with the PC, firewall nor the anti virus blocking me from plaing them nor the updates. The Lan Cable was also tested with a technician and there is no isue with it. Could it be the network? I'm using fios Verizon and i also have a PS4 and we have no problem with the network happening on that system. Please help me, this is very rare and got no more ideas on how to resolve this. The only game that's running without fps problem is CSS (200 fps) which is weird.