TimeMachine Backups failing with Monterey 12.4
I upgraded to Monterey 12.3 in May and ever since, TimeMachine does not complete a backup, furthermore I cannot see any backups further back then 24 hours. And it continues to tell me that my last full-backup was the last one done before the MacOS upgrade.
This is extremely frustrating as it was working perfectly up until the MacOS upgrade.
When I watch the backup, it finds the NAS that is the destination drive, begins to prepare the backup and reaches about 12-15% way through each time, and then suddenly stops. No error message, no nothing.
Any ideas how to solve this?
I am backing up a 2021 Macbook Air to a Synology NAS DS218j
I've upgraded to MacOS 12.4 since then, but still the same problem persists.
Nothing changed with the NAS before this issue arose, the NAS is only half full (2TB of 4TB capacity).
I am a home-users with minimal data usage, so it's not like it's running out of space or anything.
Please help?
Thanks,
David
MacBook Air 11″, macOS 10.15