Upgraded macOS Tahoe to 26.0.1 over a week ago. Mac is mac mini M4 (2025) with 512 GB. ALL has worked fine until yesterday (Oct 3, 2025) when 4 out of 5 iCloud email accounts refused to load. What do I do to get them back up and running? BTW 2 different iPads and 2 different iPhones and 2 different Apple watches are all fully upgraded and working fine.
Many Thanks,
Bob
Apple TV 4K, tvOS 18
Try a SafeBoot Start up your Mac in safe mode - Apple Support will sort many anomalies
Login and test. Reboot as normal and test. Caches get rebuilt automatically.
Trying to trouble shoot when you are not sitting in front on the mac that is causing trouble can be just as frustrating as it is for the person sitting in front of the troubled mac.
I've got exactly the same problem. Tried everything. Nothing works. Tomorrow I have a scheduled phone call from the apple support. Let's hope they'll be able to do something about it.
Since you have 2 ipads, 2 iPhones and 2 Watches, could you not log into one of your iCloud accounts on each device?
Being that 26.01 is beta - is there a way to revert back to 26?
Email not working after macOS Tahoe 26.0.1
