NUC6i7YKY - Thunderbolt Controller Failure after Windows Update 1903

[MVain]

The setting worked until today. Thunderbolt 3 chain from Thunderbolt Controller 1575 to LaCie D2 Thunderbolt 6 TB to Apple Thunderbolt Display (by Apple Adapter TB3 to TB2).

Made the Windows 10 64bit Update 1903 this morning. Since then I can't access the harddisk. Here is some of the experiences I made:

• Uninstalled driver and reboot - brings back the same driver with the same error (driver is TBT_Win10_64_DCH_1.41.645.0)
• Tried the "Universal Driver" TBT_WIN10_64_17.4.77.400 but did work out because "latest driver already installed"
• Uninstalled Intel Thundebolt Controll Center and reboot - no change
• Plugged out all TB devices and the power cord from the NUC, pressed the power button for some seconds and reconnected only the Display. After the reboot the Thunderbolt Controller looked fine (no error) and the TB Controll Center showed the display as "connected". Shutdown of the NUC, reconnect the HD in the chain and reboot. Again error in the driver "Status_Device_Power_Failure".
• In Thunderbolt Controll Center is no device visible (in all categories).

What more can I do? Any ideas?

[MLevi]

Hi MVain,

I had an issue very similar to your NUC6i7KYK. Here are some other items to check:

• Ensure that you have the latest BIOS installed: 063
• Install the TB3 Controller-Firmware-Update using this tool: https://downloadcenter.intel.com/download/27667/Thunderbolt-3-Controller-Firmware-Update-Tool-for-NUC6i7KYK
• Last but not least, the TB3 cable

[MVain]

Hi MLevi

Thanks for your answer. The thing is that I went trough all of this the other day (exactly the steps you describedand some more) and at the end everything worked - until this morning when I ran this Windows Update. I read somewhere that Windows might have lost the authentications of all thunderbolt devices and that the display doesn't need one. This could be seen as confirmed by the fact, that the system runs just fine if i plug in the monitor at the pc and leave the harddisk aside.

But what does that mean? How can I re-authenticate the harddrive to the thunderbolt controller?

Edit:

There is no device in the thunderbolt control center when the harddrive is in the chain. So I can't authenticate it there.

Btw: Whithout the harddrive the monitor is displayed in the control center.

[MLevi]

Hi MVain,

Your edit was a good one, adding that detail.

I recommend at this point to uninstall that update that appears to be responsible for the issues.

Is there any way you can drive a monitor with the HDMI port, and plug the LaCie in and see if the TB Control Center picks up the hard drive?

Also, please download, install, run and save the output of the Intel SSU from here

You can upload the output of the tool, once saved to this thread. It's important for the Intel people with deep technical knowledge to help.

Mike

[MVain]

well, i just ended up in reinstalling the full machine with only the monitor pluged in. updated windows as long as "something appeared" including the 1903 functional update. at the very end i reinstalled the chain like described above. and now? everything is just fine... #weirdstuff

so mike: thank you very much for all your ideas - i really appreciate!

mika

[MLevi]

Congrats. MVain!😀