What does OSStatus error 89 mean?
Related to this thread from 2013: What does OSStatus error 89 mean? - Apple Community
The suggested solution refers to Pondini.org, a domain that no longer exists. I have the same problem. Tried rebooting, didn't work. My setup is QNAP NAS running QTS. Folder set as Time Machine backup. I regularly back up to other QNAPs on our network with no problems. Any ideas greatly appreciated.
Thanks,
Tony
Earlier Mac models