I too was having the issue with ethernet on Ubuntu 16.04 at 4.8.0-51. I also have the DA200 adapter:-
http://www.dell.com/en-us/shop/dell-adapter-usb-c-to-hdmi-vga-ethernet- usb-3-0-da200/apd/470-abqn/pc-accessories If I plug this into the ethernet port on the TB16 and use the ethernet port on the DA200 my ethernet hasn't dropped out in the last hour. I've tested with copying large files from my NAS, from the net and NAS and net concurrently. Let me know if I can provide further details. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1663975 Title: XHCI errors causes dock USB and network adapter dropouts To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1663975/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
