Timemachine Back-up in MacOS 26 (Tahoe) does not work on Synology DS920+ NAS

Thanks for your answer. I did reboot the DS920+ and it did not work.

Next try was to kill AFP and tested it again. Now the DS902Plus share is shown in Network and Finder, but an error was shown. IP-adres not available or something.

On my iPhone and iPad I can login at the NAS and I can access shares and files, but on MacOS Tahoe I still get no permission.

The Synology-assistent.app shows the Root Share DS920Plus and redirects via Safari to the Webportal, on which I can login.

Can you post the link to this kansen article, because I’m not sure I have configured the setting right.

Now I have SMB only and AFP disabled and the Share is shown up.

Finder and TimeMachine does not find the IP-Adress for DS920Plus.

willem-blues wrote:

Can you post the link to this kansen article, because I’m not sure I have configured the setting right.

Now I have SMB only and AFP disabled and the Share is shown up.

Finder and TimeMachine does not find the IP-Adress for DS920Plus.

I used the same article as the link in your original post. If it helps, here are my settings for the NAS.

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Aha, unfortunately I have consulted this issue with Apple and Synology. The procedure regarding WD is unknown to me. But try the option with the terminal using the SMB protocol (SMB ….. yes). By default, this command in macOS is empty – at least it was empty for me…

Might be worth checking out. Out of old habit I never name anything with other than English characters but I guess I might have missed that.

If you could tell me where you found the sparse bundle in Disk utility that would be awesome. I´ve never ever really tinkered with macOS file system

The file mentioned which needs a change does not even exist on my machine. I also do not have wierd characters in my backup volume name. And why is this a problem all of a sudden in Tahoe. Why is apple breaking so much stuff with this release uch...

Thanks for this tip. I am using English keyboard, most posters here seem to be using foreign keyboards. Backups had been makeing lots of disk acivity and after I changed he nsmb.conf to sighing = yes. it took some time for the restore timeline to appear but it finally did. I have not verified a restored file yet but all seems to be wording well.

Thanks!!

TimeMachine was working under Tahoe 26.1. Then I "upgraded" to 26.2, and the problem started again.

Mac Studio 2023, Synology DS923+

I can't even delete and recreate a new backup now. "The selected network backup disk does not support the required capabilities. Please be sure Time Machine capabilities are enabled on the server for this volume or choose a different network backup volume."

I did not change anything about the Synology disk before or after going to Tahoe 26.2.

Did it help to activate AFP? Apple don't recommend AFP on newer Mac.

Thanks.

I have the same settings.

It doesn't work though.

I got the same result. All boxes checked as suggested, but TM plainly just does not work... An older MacBook with older version of MacOS just works fine though...

Thanks for the suggestion 👍 Unfortunately, I already tried removing the disk from Time Machine and adding it back, but that didn’t solve the issue. The error still persists.

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It's resolved. Thank you!