Ethernet Link not working on Windows 10

ImCoKeMaN · 01-22-2018, 12:28 PM

I am having the same issues, I can't confirm the exact status of when it changed as I've used multiple docks, and some with wireless, but I have a Lenovo USB 3.0 Dock which used to work perfectly. Now when I plug in the Ethernet it takes a little before link lights come on, and the connection seems to cycle on and off multiple times in a given 10 minute period. When it's off it acts like the cable is disconnected.

Again this same dock, port etc, used to work perfectly. Also, I've done 2 major troubleshooting steps that are pointing me to think this is actually a software issue:

1. I used a USB Ethernet adapter plugged into the dock and the Ethernet got link lights and was stable at a full duplex 1Gbps.

2. I swapped the dock for another unit of the same model, it had the same issues.

I find it hard to believe all of a sudden 2 docks had a bad port.

So here are my current stats:
Windows 14393.1944
Displaylink 8.4.3026.0
Lenovo USB Ethernet 8.4.2815 file version 2.34.19.0

I have also tried rolling back displaylink and Lenovo usb Ethernet drivers, but haven't found a successful combination.

01-22-2018, 12:28 PM	#2
ImCoKeMaN Junior Member Join Date: Jan 2018 Posts: 8	I am having the same issues, I can't confirm the exact status of when it changed as I've used multiple docks, and some with wireless, but I have a Lenovo USB 3.0 Dock which used to work perfectly. Now when I plug in the Ethernet it takes a little before link lights come on, and the connection seems to cycle on and off multiple times in a given 10 minute period. When it's off it acts like the cable is disconnected. Again this same dock, port etc, used to work perfectly. Also, I've done 2 major troubleshooting steps that are pointing me to think this is actually a software issue: 1. I used a USB Ethernet adapter plugged into the dock and the Ethernet got link lights and was stable at a full duplex 1Gbps. 2. I swapped the dock for another unit of the same model, it had the same issues. I find it hard to believe all of a sudden 2 docks had a bad port. So here are my current stats: Windows 14393.1944 Displaylink 8.4.3026.0 Lenovo USB Ethernet 8.4.2815 file version 2.34.19.0 I have also tried rolling back displaylink and Lenovo usb Ethernet drivers, but haven't found a successful combination.