So I have a Archer C7 Router to connect to my desktop, for gaming. i would use PLC sockets if I could but all the eterhenet slots on the ISP are populated. For a couple weeks it worked just fine, then i had to reset it because apparently it had lost the network it was sourcing. I must add that I'm not close to the main router but close enough to get excellent signal on all my wifi capable devices. Then after resetting it it would randomly lose network and get it back again for half a second. And today it just got super slow, and so i fresetted it once more. Now I have huge latency issues. I read online on another thread it might be overheating so I took it to a cooler place, at the exact same distance of the main router. Still have latency. The video attached is me having Discord connected to a voice server with no one in, monitoring latency on Discord and CPU load on the TPLink Dashboard. Any explanation as to why this happens and most importantly a fix to this would be welcome.

Thanks for reading.