I find it rare to know why this happens but continue to work these slowdowns in the usual ways.
1. We don't share the WiFi. Gamers tend to need their own WiFi. So do whatever it takes to get your own WiFi. You can try kicking all devices off save yours to dedicating the 5GHz channel to only your use as 2.4GHz is now so crowded no tech that visits will assure you it can be fixed.
2. You mention a factory reset. This usually is OK but you didn't tell enough. Microsoft has in W10 this driver update system which at times is pure evil. You'll have a good set of drivers then Microsoft replaces them. Drivers do not wear out. My method?
a. Disable Windows Driver Update.
b. Install latest BIOS, drivers as indicated by the PC's maker.
So I bought a very good gaming pc the last week of july and everything was great. But for the past two weeks my internet is slower than usual, my provider cannot find any problem and I tried everything I can think of but not as far as resseting my computer yet. I want to see if you could have suggestion before I resort to resetting everything.
I play regularly a game that does not usually use a lot of connection, it goes to 15 ms and thats perfect but it went up to 80 ms the last two week and I experience some small lag and sometime deconnection. One other thing is I use skype or Discord daily, and I can hear regular cut in the discussion, even 5 seconds cuts, and it goes back to normal but it happens all the time and it was not happening before.
So any suggestions ?