Thunderbolt NAS Disappears ON Putting Mac Pro 7.1 To Sleep and The Waking It UP

[vegetassj4]

I’ve been having disconnect problems with my Promise Pegasus2 over Thunderbolt (3 to 2 adapter)
Random Disconnects requiring a reboot and Dark Wake for no reason.

 

[Magnetize]

Hi Everyone!

I have finally found a workaround to this issue when my iMac 2017 27" wakes up from sleep and is unable to connect to my QNAP (TVS-872XT) via Thunderbolt 3. The workaround solution is to SSH into your QNAP device as an admin. Then run the commands below to stop your Thunderbolt service, wait a few seconds, and then start the Thunderbolt service back up again. There is a restart option as well, but it does not work reliably because I don't believe it waits long enough between stop and start. Nevertheless, after I run the commands below my iMac is able to reconnect to QNAP via Thunderbolt successfully 100% of the time.

> ../etc/init.d/thunderbolt.sh stop
[Wait a few seconds]
> ../etc/init.d/thunderbolt.sh start

BTW, I found a way to automate the entire process. So now every time I wake my iMac from sleep, it will automatically check my connection to QNAP via Thunderbolt. If its not connected, it will stop and start the Thunderbolt interface on QNAP and then re-establish the connection.

I have uploaded the scripts to Github to automate restoring the QNAP Thunderbolt connection when Mac wakes up from sleep. Please review and share any feedback. Hope this helps!

Github Link:
https://github.com/gamster17/AppletoQNAPThunderbolt

This is the Full Write-Up with Instructions:
https://github.com/gamster17/Applet...reaks after waking computer from sleep_FM.pdf


Sincerely,

Fernando M.

 

[XNorth]

Any update on this problem? I have no Thunderbolt connection at all with my QNAP. Rebooting, replugging cable, waking up, nothing works. The NAS was able to mount once last week for a few minutes, then the connection was disrupted. Having no luck since then.

 

[Bengaldad]

The latest QNAP and Apple updates have completely resolved the problem for me. When I boot now I always have a Thunderbolt connection to my QNAP TVS-872XT NAS and when I put my Mac Pro to sleep and wake it sometime later, the Thunderbolt connection is restored. Be certain that you are running the latest version of the QNAP software and the latest update to Big Sur.

 

[XNorth]

I'm on the latest QNAP firmware and macOS. Nothing worked. So I gave up on Apple and TB. Spent $150 on a 10G Ethernet adapter and it's been solid so far. Apple had not cared to fix that bug and I'm not going to wait for them.