04-26-2018 03:41 AM
I have a Thunderbolt 3 Dock connected to an X1 Yoga 3rd Gen laptop and daily the dock will briefly disconnect from the laptop. When this happens the two external monitors (DP connected) go blank and I can see that the LAN connection on the Dock drops off and onto Wifi.
This is happening to two different laptops and docks of the same model.
All the latest patchs, software, firmware and bios are installed.
Win 10 (1607)
X1 Yoga 3rd Gen (20LE) Bios: 1.12
Thunderbolt Controller: 18.104.22.168
Thunderbolt firmware: 407.06.12
ThinkPad Hybrid USB-C with USB-A Dock Driver: 10011
Nothing seems to resolve it.
I have the laptop and dock on a UPS and the dock is using the correct power supply, plus I'm using the supplied USB 3 cable (0.5m) which is in the back slot on the dock and correct power slot on the laptop.
Any ideas to resolve.
(We will be deploying 100 of these in our office and need a resolution before we can proceed).
06-21-2018 07:52 AM
Did you find a fix? We are in the beta test and experiencing this same issue. We are considering using the other dock as it does not disconnect. We will be deploying about 600 laptops.