I have had DC's and lag every now and then, so I've reinstalled windows completely and updated every driver and installed every program 1 by 1 and tested everything. It appears to be this program was the cause of my DC's. I undervolt my PC with Intel XTU nowand i have no more problems. If anyone else has DC's and runs throttlestop you might wanna try turning it off or switching to XTU. I really can't understand why this program would cause lag and disconnects (instead of PC performance issues). The only two options I changed was the undervolting and reduce max of CPU turbo, the latter I can't do in XTU. So it must be either one of the throttlestop default options or reducing the CPU max turbo that can cause this problems with some pc's.