Time Machine-Synology NAS - Ventura

Fixed:

I was able to once again see my Synology Share simply by enabling AFP.

Synology : Control Panel / File Services / AFP / Check Enable AFP Service.

Go back to Time Machine and click add disk and I see my old Time Machine shares out there.

Grrrrrr.

I'm having the same issue with my new Synology NAS (running DSM 7.1.1-42962 Update 1, latest available). My issue seems to occur only on Intel-based Macs running Ventura.

Same issue occurs on an iMac Pro (Intel, Ventura 13.2) and a MacBook Air (Intel, Ventura 13.1). The issue does *not* occur with a MBP (M1-based, Ventura 13.1).

With the two Intel-based machines, the Time Machine client cannot see the Time Machine volume on my NAS ("No Time Machine destinations..." when trying to add a backup). I can mount the NAS volume in the Finder from either Mac using smb://<name>.local and can then access the "Time Machine" folder.

This setup worked fine for about a week or so, backing up daily for a few days. Then yesterday both of the Intel-based machines generated a Time Machine back up error, failed trying to find (connect to) the TM volume. Now, the previously-configured back up fails, and if I try adding a new back up it shows there is no available TM destination discovered.

I've rebooted all Macs, rebooted NAS multiple times, updated to 13.2 on the iMac Pro (no change in behavior). Any ideas on what to try, I'll give it a shot!

If your NAS is 10 years old, it was never supported by Apple, and even though Apple has made a way that a NAS is supported, I doubt your NAS has the necessary software.

Your NAS would need to support Time Machine over SMB specification. If the NAS software can be updated to their current software, it should support Time Machine over SMB. They use Samba for SMB, so if you can determine what version of Samba is running on the NAS, it would need to be 4.8 or later.

You need to make sure the NAS software is set up to use SMB for Time Machine.

It’s only 6 months old and both it and it’s Synology predecessor have worked fine with my MacBook and Mac Mini to date for the last 6-7 years thru various upgrades of both Mac and NAS software.

its only the MacBook Air and Ventura that are giving problems. I’m suspecting hidden settings in Ventura…

You are not alone.

I have a 2021 Mac Book Pro that suddenly stopped recognizing my NAS based shares on my Synology NAS after upgrading to Ventura. I can access the other normal file shares from the OS / Finder on this same NAS, but Time machine won't even properly launch and bails on me when I attempt to "Add backup Disk..." "No Available Time Machine Destinations ... Connect a suitable external drive or network storage device."

I had been using Synology backups for several years now with few issues. All of that is now broken, even if I can see the shares from the OS.

Cracked it in the end though not sure why/how. Turned off firewall and AFG. Connecting using Safari. restarting MacBook and NAS. Multiple time. And eventually it connected and backed up.

Now to turn things back on again...

Fixed:

I was able to once again see my Synology Share simply by enabling AFP.

That's not AFP. It's a hack of AFP. Apple never licensed it. The net result is it seems to back up fine, but if you need to restore, you likely will have problems.

Or, you'll constantly run into something like, "the backup set is corrupted and needs to be erased."

My new MacBook air restored fine from a Time Machine Backup of my old (2012) MacBook pro.

I think corrupt back up sets are just an occasional feature of Time Machine judging by many years of experience and hearing of others experience

What version of DSM? 6.2.4.current? Or 7.0.1.current? Or something earlier? If earlier, I’d update to 7.0.1.current.

The NAS isonly a few months old (replacing a previous Synology NAS that was short of space). Its set to auto update software