X1 Carbon / ThinkPad USB 3.0 Dock: Issues with connecting with more than one Dock

[Wim]

Hi

What is the Ethernet status in device manager when this happens? There was a timing problem fixed in 7.7 which could cause the Ethernet interface to come up with Error code 43 during state changes, which could include re-docking:

Video and/or Ethernet not available after power state changes on some
platforms. Ethernet could show a Yellow "!", with Error Code 43, in device
manager (17896, 17047)

Its possible you are seeing the same. If this does not solve it, can you let me know what the error code number is?

Thanks

Wim