In Device Manager, go to Properties -> Power Management and uncheck "Allow the computer to turn off this device." Cable Check: Ensure the Ethernet cable is clicked in fully. If you're still stuck, tell me: What Operating System are you using? What is the Hardware ID (from Device Manager)?
Look for brands like Realtek, ASIX, or the specific device builder. e-ul100 z12011 driver download
⚠️ Avoid "Driver Updater" software that asks for payment. Stick to these sources: In Device Manager, go to Properties -> Power
Search for the Hardware ID to find WHQL-certified drivers. In Device Manager