I'm using Windows 11 and my internet setup is through GloFiber. My computer is pretty new, just a few months old, as is the GloFiber service. Everything worked great until a few days ago when I started noticing that my Ethernet connection keeps dropping every 30 minutes or so. It reconnects when I unplug and replug the cable, but that's just a temporary fix. I had a technician check the router, and he suggested buying a new Ethernet cable, which I did, but the problem persists. The odd part is that my WiFi works perfectly fine throughout this issue. I'm beginning to think it could be a hardware problem since I've already tried restarting the network adapter. Any ideas on what could be going wrong?
3 Answers
Have you tried updating your network drivers? Sometimes the power settings for the adapter can also interfere. It's worth checking into those options to see if anything changes.
Installing the 'Internet Connection Monitor' Chrome extension could provide you with useful stats on when your connection drops. If you can, borrow another router to see if that resolves the issue. There's also a chance the Ethernet adapter in your PC could be faulty; consider testing with a cheap PCI Ethernet card or USB to Ethernet adapter.
First, go to your network adapter settings and try changing the connection speed from auto to 1gbps if both your router and network card support it. This might help stabilize your connection.

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