I've been experiencing frustrating random disconnections with my Ethernet connection while using Windows 11 and AT&T's 2GB Fiber. My PC is connected directly to the modem/router via a CAT 6 Ethernet cable, but at unpredictable times throughout the day, my internet drops for about 3 to 5 seconds. This interruption, although brief, really disrupts my online activities like playing games. On some days, everything works fine, but other days, I struggle to browse the internet without interruptions. I've tried several troubleshooting steps, including restarting my modem/router and PC, checking for driver updates, tweaking Ethernet adapter settings, and ensuring physical connections are secure. AT&T claims there's no issue on their end, and the cable seems fine too. This issue has been ongoing for about 4 to 5 months, and I'm running out of ideas. Any advice would be greatly appreciated!
2 Answers
You should definitely check your Ethernet adapter's power management settings. Go to Device Manager, find your network adapter, right-click and select properties. In the power management tab, make sure to uncheck the option that allows Windows to turn off the device to save power. It's a common issue that causes those random 3-5 second drops, which is what you’re experiencing. Also, double-check that your cable is securely connected on both ends; sometimes, even if the connectors look okay, they might be slightly loose.
If you've already unchecked that option and ensured the connections are tight, consider if the issue might be cable-related. Sometimes, even a small defect can cause intermittent problems. You could try swapping out the Ethernet cable with another one to see if that resolves the issue.
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