I have confirmed on both a 2017 iMac Pro and a late 2019 Mac Pro 7.1 that installing Big Sur 14.3 update breaks Thunderbolt over I.P. and the Macs with Big Sur 14.3 connected via Thunderbolt to my QNAP NAS TVS-872XT will not boot. The boot progress stops and hangs about half-way through. Removing the Thunderbolt connection from the NAS to the Mac and the Mac will boot with no problems. Apple broke Thunderbolt over I.P. in Big Sur 14.0 and 14.1, then restored it in 14.2 and have now broken it again in 14.3. If you have a NAS connected via Thunderbolt, I would strongly advise against installing the Big Sur 14.3 update.
Tom
Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
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Bengaldad
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Bengaldad
- Starting out
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- Joined: Sun Aug 23, 2020 4:55 am
Re: Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
I meant to say the Big Sur 11.3 update breaks Thunderbolt connectivity to the QNAP TVS-872XT NAS and stops booting with Thunderbolt from the NAS connected.
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rsmFL
- First post
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- Joined: Sun Sep 15, 2019 5:47 pm
Re: Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
I can confirm. I am having the same issue.
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robert_m_muench
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Re: Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
Same here. BigSur 11.3 with thunderbolt doesn't work.
TVS-1282T3
CPU: Intel Core i7-7700 CPU @ 3.60GHz
Memory: 64 GB
2 x Samsung SSD 850 EVO M.2 1TB (M.2 SATA)
2 x Samsung SSD 860 EVO 2TB (SATA)
4 x WDC WD6002FFWX-68TZ4N0 (SATA) (6TB)
4 x Seagate ST12000VN0007-2GS116 (SATA) (12TB)
CPU: Intel Core i7-7700 CPU @ 3.60GHz
Memory: 64 GB
2 x Samsung SSD 850 EVO M.2 1TB (M.2 SATA)
2 x Samsung SSD 860 EVO 2TB (SATA)
4 x WDC WD6002FFWX-68TZ4N0 (SATA) (6TB)
4 x Seagate ST12000VN0007-2GS116 (SATA) (12TB)
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antik
- Know my way around
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Re: Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
yep, I have the same issue - after update Big Sur to the version 11.3, T3 connection sometimes works, sometimes don't (moreover now I have a similar problem with the connected LCD LG 5K) 
TVS-h1288X-W1250-128G (850W) + T3 card + QXG-10G1T + GIGABYTE RTX 4080 Super Gaming OC 16G (Silent FW) + 2x 2TB M.2 NVMe Kingston KC3000 (RAID0 - apps, Qsync, VM's) + 12x 2,5“ 3,84TB SATA SSD Kingston DC600M (RAID5 - VM's, data).
TVS-1282T3-i7-48G (450W) + QXG-10G1T + PALiT GeForce GTX 1660 Super GP OC + 2x 1TB M.2 NVMe ADATA SX8200PNP (RAID0 - apps) + 4x 2,5“ 3,84TB SATA SSD Samsung PM883 (RAID5 - data backup) + 8x 8TB Seagate IronWolf Pro (RAID6 - data backup).
TS-677-16GB + 1x 256GB SSD Samsung EVO (apps) + 3x 8TB Seagate Exos (RAID0 - QVR Pro cameras recording)
Network stuff (priority use of 10GbE): QHora-301W, QSW-804-4C, ASUS XG-U2008 and TP-Link TL-SG1008MP. Protected by 2x APC CYBERFORT II 700VA.
TVS-1282T3-i7-48G (450W) + QXG-10G1T + PALiT GeForce GTX 1660 Super GP OC + 2x 1TB M.2 NVMe ADATA SX8200PNP (RAID0 - apps) + 4x 2,5“ 3,84TB SATA SSD Samsung PM883 (RAID5 - data backup) + 8x 8TB Seagate IronWolf Pro (RAID6 - data backup).
TS-677-16GB + 1x 256GB SSD Samsung EVO (apps) + 3x 8TB Seagate Exos (RAID0 - QVR Pro cameras recording)
Network stuff (priority use of 10GbE): QHora-301W, QSW-804-4C, ASUS XG-U2008 and TP-Link TL-SG1008MP. Protected by 2x APC CYBERFORT II 700VA.
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robert_m_muench
- Getting the hang of things
- Posts: 93
- Joined: Mon Feb 12, 2018 9:26 pm
Re: Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
It's an Apple bug and looks like it was broken-fixed in 11.3
I think we have to wait for the next update. AAPL is really becoming like M$ in the 90s
I think we have to wait for the next update. AAPL is really becoming like M$ in the 90s
TVS-1282T3
CPU: Intel Core i7-7700 CPU @ 3.60GHz
Memory: 64 GB
2 x Samsung SSD 850 EVO M.2 1TB (M.2 SATA)
2 x Samsung SSD 860 EVO 2TB (SATA)
4 x WDC WD6002FFWX-68TZ4N0 (SATA) (6TB)
4 x Seagate ST12000VN0007-2GS116 (SATA) (12TB)
CPU: Intel Core i7-7700 CPU @ 3.60GHz
Memory: 64 GB
2 x Samsung SSD 850 EVO M.2 1TB (M.2 SATA)
2 x Samsung SSD 860 EVO 2TB (SATA)
4 x WDC WD6002FFWX-68TZ4N0 (SATA) (6TB)
4 x Seagate ST12000VN0007-2GS116 (SATA) (12TB)
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bokr71
- Been there, done that
- Posts: 605
- Joined: Sun Jan 24, 2016 8:13 pm
Re: Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
Guys - this was reported in many many forums already 1 month ago... The Thunderbolt Bridge stopped working in macOS 11.3 Beta, and it was still not fixed in the RC. It is however fixed in 11.4 Beta (20F5046g).
There is NO way around this, and the effect is indeed that you cannot direct connect via Thunderbolt to your QNAP NAS. Also if you leave the Thunderbolt cable connected to your Mac, the boot takes forever, and then you cannot use a HomePod pair for sound output.
Apple was made aware of this, but didn't actually listen until the RC client was released, and then a few days later the fix is in 11.4 Beta 1.
There is NO way around this, and the effect is indeed that you cannot direct connect via Thunderbolt to your QNAP NAS. Also if you leave the Thunderbolt cable connected to your Mac, the boot takes forever, and then you cannot use a HomePod pair for sound output.
Apple was made aware of this, but didn't actually listen until the RC client was released, and then a few days later the fix is in 11.4 Beta 1.
Apple: MS M1 Max 10c/32c/16c/64GB/2TB - MP 3.2GHz 16c/192GB/2TB/2xRadeon Pro - nMP 3.5GHz 6C/64GB/1TB/D700 - Echo Express 1TB Accelsior/4x500GB NVMe Sonnet/Sonnet Solo10G PCIe - MBP 13" 4c i7/16GB/512GB - MBP 14" M1 Pro/16GB/512GB - MB 12" 4c i7/16GB/512GB - MMI 6c i5/8GB/500GB - 2 x TC 3TB - HomePods - iPhones, iPads and Apple Watches...
Primary NAS: QNAP TVS-872XT 7x10TB + 2x512GB NVMe SSD. BackUp: Cloud iDrive - Locally QNAP TR-004 4x12TB
Network: ISP Gtateway - TP-Link Deco - QNAP QSW-M408-4C
Primary NAS: QNAP TVS-872XT 7x10TB + 2x512GB NVMe SSD. BackUp: Cloud iDrive - Locally QNAP TR-004 4x12TB
Network: ISP Gtateway - TP-Link Deco - QNAP QSW-M408-4C
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galosu82
- Starting out
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Re: Installing Mac OS Big Sur 14.3 Breaks Thunderbolt To NAS and Stops Mac From Booting
Thanks for sharing that.bokr71 wrote: ↑Thu Apr 29, 2021 6:45 am Guys - this was reported in many many forums already 1 month ago... The Thunderbolt Bridge stopped working in macOS 11.3 Beta, and it was still not fixed in the RC. It is however fixed in 11.4 Beta (20F5046g).
There is NO way around this, and the effect is indeed that you cannot direct connect via Thunderbolt to your QNAP NAS. Also if you leave the Thunderbolt cable connected to your Mac, the boot takes forever, and then you cannot use a HomePod pair for sound output.
Apple was made aware of this, but didn't actually listen until the RC client was released, and then a few days later the fix is in 11.4 Beta 1.