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

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...

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!

Same issue on WD My Cloud EX2 Ultra

It seems that MacOS 26 (Tahoe) is the problem here.

Thank you karel250. Works like a charm.

**** annoying. Apple TM doesent work when you use foreign language.

And this error was created by TM itself.

Using only a-z characters, but still doesn’t work…

Same here, my WD MyCloud failed to backup with Time Machine after updating to macOS 26 Tahoe