Desktop can't connect to internet, all other devices have access

My desktop PC is connected to my home router via ethernet cable. It was working perfectly fine yesterday but other members of the house were having WiFi issues so they restarted the router. Since then all other devices are working perfectly fine (posting this via a laptop with no issues), but my PC is refusing to connect.

The ethernet cable is working but won't connect, and my PC can occasionally connect to WiFi but the connection is incredibly poor and intermittent. I restarted my PC and router, reinstalled my network adapters, and attempted hard reset on my router via the pinhole on the back. Nothing has worked and not sure on what else to do. Any help is much appreciated.

If you need any information from me please ask, and again thanks in advance.