Reverse detail from Kakelbont MS 1, a fifteenth-century French Psalter. This image is in the public domain. Daniel Paul O'Donnell

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Resetting a Dell TB16 Thunderbolt dock

Posted: Mar 11, 2019 15:03;
Last Modified: Oct 11, 2020 12:10


I have a TB16 Thunderbolt dock to act as a hub for my screens, internet, camera, and so on.

This afternoon I came back from a meeting and my computer was hibernating and the doc was dead: no power light, no light on the thunderbolt cable, no response to commands, and no screen, sound, or internet pass through.

Looked through the Dell troubleshooting guide and found nothing.

In a chat with a tech, they told me how to reset the dock (I don’t see this anywhere obvious on the Dell site):

  1. Unplug the dock from power and from the computer
  2. Hold the power button on the dock down for 45 seconds
  3. plug everything back in
  4. power up.

That worked.


Comment [26]

  1. Peter Wibberley (Tue Jul 30, 2019 (03:30:50)) [PermLink]:

    Not clear how holding the button down on the dock works after the power supply to the dock has disconnected. Is that step essential?

  2. Goku (Thu Oct 24, 2019 (02:13:06)) [PermLink]:

    This worked for a WD15 dock as well, thank you!

  3. Abs (Sat Nov 9, 2019 (16:17:44)) [PermLink]:

    Thanks mate, your a lifesaver!!!

  4. Brendan Minter (Fri Nov 15, 2019 (14:09:15)) [PermLink]:

    Thanks for the message/help.

    B. Minter

  5. Jared (Wed Nov 20, 2019 (17:48:07)) [PermLink]:

    Thank you so much for posting this! We had a power outage and I was worried it was fried – but this worked – champion :-)

  6. John (Wed Nov 27, 2019 (15:25:28)) [PermLink]:

    That worked. Thanks so much!

  7. YY (Fri Dec 13, 2019 (15:28:15)) [PermLink]:

    Thanks man!! That worked for me after a power outage I thought it was fried. But working thx to you

  8. Jay Blanchard (Sat Feb 22, 2020 (18:41:22)) [PermLink]:

    OMG, you are my hero. Just had a power surge and thought for sure I had fried my TB16. Tried your instructions and they worked like a charm. Thank you so much for posting this to help others like me!

  9. Jamie (Thu Mar 26, 2020 (01:40:37)) [PermLink]:

    Amazing thanks so much for this, the dock was unresponsive this morning and this has just recovered it!!

  10. JK (Sun Mar 29, 2020 (18:47:20)) [PermLink]:

    Thanks for the post. It helped me out today.

  11. Michael Tardif (Thu Apr 9, 2020 (12:13:13)) [PermLink]:

    Thank you; just experienced an electrical event, and even though my devices are protected, the Thunderbolt flickered off while my computer and other peripherals did not. I thought the Thunderbolt was fried, and Dell documentation was no help. Your solution worked. Thanks again.

  12. Bob (Tue Apr 14, 2020 (10:40:28)) [PermLink]:

    Thank you so much for this post. Worked like a charm.

  13. Andrea Brunelle (Sun May 17, 2020 (19:49:17)) [PermLink]:

    Thanks for this! :)

  14. Tonio (Wed May 20, 2020 (10:56:57)) [PermLink]:

    Thanks very much, you saved my day here in Argentina

  15. Matt (Sat May 23, 2020 (07:34:51)) [PermLink]:

    I did not know about the 45 seconds on the power button. I have typically had the same problem every once in a while as well; and still do. The other option that I found was, unplug the power and laptop TB connection. Unplug every peripheral on the dock. Plug in power and TB to laptop. Power light on TB connector should come back on now. Plug in all dock peripherals. Press the dock button for a second and system should boot normally. Quite a pain. I’m frustrated about this. I would use the TB18, though I doubt it’s different, but that has other USB driver issues that cause blue screens. USB docks are the worst. They are just convenient for manufacturers; one for all even though power requirements make that null and void now (TB16 vs TB18). Thanks for you option. I will try that the next time the light won’t light. I believe temp power drops (storms) resulted in my issue this morning. Still very frustrating. I may need to put the dock power brick on UPS.

  16. Angel (Tue Jun 30, 2020 (01:42:31)) [PermLink]:

    Thank you so much. I thought my docking station was fried. I actually went and purchased another docking station and it would work with one of my laptops but not my work laptop. I found your article later and tried your method and it worked seamlessly. Now tomorrow I will be going back to micro Center and returning that docking station that I purchased. Thank you again you saved me.

  17. Eric (Sun Jul 12, 2020 (21:29:16)) [PermLink]:

    It worked for me. Thank you so much.

  18. Paul Martin (Sat Jul 25, 2020 (05:25:11)) [PermLink]:

    Thank you… it worked!

  19. Computer User (Fri Aug 7, 2020 (16:49:43)) [PermLink]:

    Why is this on an English professor’s website? It works by the way…

  20. J McCombie (Tue Aug 11, 2020 (16:56:00)) [PermLink]:

    Thank you so much! This worked on my Dell WD19TB dock. I had a monitor plugged into the HDMI port on the dock.

    The monitor kept saying that it could not detect the signal on the HDMI line. i tried everything. And the main reason i purchased this quite expensive dock was to plug the monitor into it

    i admit i was skeptical, but thought why not, can’t hurt

    Worked like a charm

    Best wishes to you.

  21. Stang (Tue Aug 18, 2020 (18:23:02)) [PermLink]:

    Trying the TB16 fix and it won’t work – no light on thunderbolt cable no matter what. Tried a different cable as well. Suggestions? BTW it simply stopped working

  22. Dan Studebaker (Wed Aug 26, 2020 (12:48:29)) [PermLink]:

    Huge thanks for this!

  23. Steve Walsman (Thu Sep 17, 2020 (08:38:57)) [PermLink]:

    I took a power hit and this procedure worked for me. The 45 second hold down of the power button. Wow! Seems counter intuitive, but it works!

  24. Anne Horgan (Fri Sep 25, 2020 (03:15:24)) [PermLink]:

    Thank you, this worked perfectly!

  25. Dan (Sun Oct 11, 2020 (12:34:29)) [PermLink]:

    @Stang: I’m afraid I don’t know the answer if this doesn’t work. I don’t want to say maybe something more serious happened, but that’s always a possibility.

  26. Dan (Sun Oct 11, 2020 (12:38:25)) [PermLink]:

    A comment on a couple of things people have been saying:

    1) I actually use this all the time, maybe daily. Zoom seems to have a memory leak in Linux and over the course of a day my memory gets used up and everything freezes. Or I had my wacom tablet during a call and the dock shuts down. I reset it using this method in both cases, usually having to cold boot the computer as well.

    2) I don’t think it’s that unusual that holding a power button down while power is off resets electronic devices. I’m not sure of the engineering of it, but I’ve certainly seen it before. I always assumed that there must be some residual battery power or something and that you are flipping a reset button.



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