Thunderbolt Network Attached Storage Disappears on Putting Mac Pro 7.1 To Sleep

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Thunderbolt Network Attached Storage Disappears on Putting Mac Pro 7.1 To Sleep

I have a QNAP NAS (TVS-872XT) with a direct Thunderbolt 3 connection and an ethernet connection to my Mac Pro 7.1. When I boot the. Mac Pro the NAS connects via Thunderbolt, shows a Thunderbolt connection in Finder, and all is well. However, when I put the Mac Pro to sleep and later wake it up, the NAS has disconnected with only the ethernet connection working and showing in Finder. I can find no way of reconnecting to the much faster Thunderbolt connection without rebooting the Mac Pro. This issue arose only after installing Big Sur.

Does anyone have a solution to this problem that will allow me to retain the Thunderbolt NAS in the finder and reconnect by double clicking on it.?

Thank you in advance for responding.

Tom

Posted on Dec 3, 2020 11:52 AM

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Answer 1

Dec 3, 2020 12:02 PM in response to TomWheel

Many such issues occur when Mac drops power to peripherals while sleeping.

Does it have its own independent Power Supply?

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Answer 2

TomWheel Author

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Dec 3, 2020 1:21 PM in response to Grant Bennet-Alder

Grant,

Thanks for responding. Yes, the QNAP TVS-873XT definitely has its own power and is running 24/7. When I put the Mac Pro to sleep the NAS tells me (through its own sound system) that that the Thunderbolt has been disconnected. When the Mac Pro wakes up, the NAS tells me that Thunderbolt has been connected, but I never see the Thunderbolt appearing in the Finder unless I reboot. This frustrating problem did not occur until Big Sur was installed and is clearly a Mac problem.

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Thunderbolt Network Attached Storage Disappears on Putting Mac Pro 7.1 To Sleep

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