I've had many issues with this PC. Sometimes I can find a hotfix for the wifi and sometimes I have issues that persist. Let me go into detail about the issue. Currently at least I have normal ping (this is all according to speedtest.net) of about 11-20, download speed that fluctuates at around 10 and a a normal upload speed of 10-12 ish. On a ethernet PC i get 90 down and on a different Wi-Fi PC, same windows 10 same adapter tp link 4800 and same newest qualcom driver, gets about 50 down. I complain because if I play games the internet really fluctuates sometimes to like 1mbps down if I test it and in game it shows my ping to be 400. It is really frustrating. The modem is a sb6141 i believe and the router is a linksys wrt1900. Ive tried a lot. Different drivers, changing the frequencies of the wifi, 2.4 and 5ghz, dns flush, restarting modem and router but no luck. The only difference I could find between these PC would be the mobo. Would that be it? Any help is greatly appreciated! Thanks a lot.