Platform: PC
Type or Connection: Wired, but using a Powerline Kit in order to be so

As for programs running, just background ones such as Steam, Malwareytes, Gyazo, Elgato Sound, Corsair Utility Engine, Corsair Gaming Software and Nvidia Settings. Also Discord sometimes, but ive had all these running since before the issue began

It goes on and off, ill have hight latency for a long while, then it eventually goes away and comes back again whenever i shutdown the computer, and the cycle repeats, forcing me to leave my PC on overnight to maintain latency.

As for resolutions ive tried Power Cycling the router, changing UnPN from 1 to 0, DNS Flushing, restarting/rebooting PC, checking for software updates