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The newest fun part: with the latest update the network connections with enabled Firewall are stable, but if you backup your Mac with TimeMachine to a NAS device, the backup is no longer working. Stops between 200 and 400MB.
[Re-Titled by Moderator]
MacBook Pro 16″, macOS 15.0
Tl;dr. This tip also worked for me. Thanks!
Waiting fix from Apple.
Details:
I have Synology NAS and use Time Machine service (all device in same local network). It's working fine for years.
After successful update to Sonoma 15.0.1 i received error message:
The backup disk image was ejected or disconnected from your Mac while backing up.
I tried restart my devices. Also I checked wifi connection. All working fine, but backup not work.
After reading comment I just turn off firewall, and backup ended successfully.
After successful update to Sonoma 15.0.1
Of course update to Sequoia 15.0.1
Same for me. Clearly an OS issue.
I would try it with the Firewall turned off if you haven't already tried it.
100% agreed with you here.
how did you updated your DNS - can you please share your process?
I added the NAS in the hosts file. It didn't solve the problem.
Does the trick but is Apple proprietary. Don't know about any performance impact compared to SMB
That won't solve the problem: you need to have a DNS server in your local network and add an entry. Otherwise try connecting via IP address, that skips the DNS resolution part.
Same here. Tried disabling firewall as others suggested but still not good. Will try in safe mode but that's obviously not that helpful in real life. Roll on update from 15.0.1.
Same problem with WD MyCloud NAS
I rejoiced too soon. Unfortunately, this setting didn't work.
Seems to be working for me as well
Anyone upgraded to 15.1 ? I wonder if the issue is fixed before leaving 14.7
It is working for me. I will say though that my target is a remote Mac with an array attached not a NAS i.e. Synology.
Seems like not for me either. Will try it again later this week when I have time to work it through properly.
What causes TimeMachine backups to fail on NAS devices?
