Just upgraded to Sierra - Time machine won't back up to my time capsule - get a message that it is preparing to back up (forever).
Help!
Paul
serious this worked for you, because mine start the back up and about 100gig it quits unexpected. really annoying
I tried disabling Sophos and then I removed it and I still can't get Sierra and my Time capsules here and at work to play nice. Whether it is the OS or this app that is the issue is moot to me. El Capitan is functional and that remains the standard until this gets resolved.
I had the same problem. I unplugged the Time Capsule, waited 30 seconds, plugged it back in and now it's backing up normally.
At this point, many suggestions, but actually none of them really has worked:
Disable Sophos - did not make any difference
Zap PRAM - (Apple suggestion) - no effect,
Unplug and plug back in - no effect.
delete all old backups and start over - not much help, either.
While some backups do happen, they are unpredictable, and the menu always shows a backup in process, never complete. If I enter time machine, there are some backups shown for the month, but none for September.
So clearly, this is a real problem with Sierra and it won't go away until Apple fixes it!
Paul
10 minutes?! You guys are lucky. The first Sierra backup on one of my Macs took *days* to complete. CPU and file system were mostly idle, so dunno what it was up to, but got there in the end, and has been mostly fine since.
My Airport has just passed its 12 month warranty period and isn't working!
Having downloaded Sierra, I am guessing this is the problem!!!
Help me urgently, I need to take a back up of files to Europe with me tomorrow night.
My saga has continued but with the patient help of an experienced Apple technician, my problem is solved.
Two things helped:
1. I completely reformatted/ erased the Time Capsule hard drive.
2. I got rid of Sophos (anti-virus) program), which seemed to be interfering with the back-up function.
Now it works perfectly.
All other experiments and efforts were ineffective.
Paul
I also ended up disabling Sophos, and this solved the problem. Thanks!
I got the same issue after update to 10.12.1.
Laptop start to heat up when time machine is running.
I had several problems after the Sierra upgrade back in September. Got around all of them eventually, but then TM once again told me that my backups were corrupt, had to be erased and restarted (a couple of weeks ago). Gave up and reverted to El Capitan (took a couple of days to save/restore everything independently of TM) but everything has been OK since then (still have my fingers crossed!)
I still think that there are one or more serious problems with Sierra and TM, but my backups (and the trail of changes) is important to me so don't plan to move to Sierra again until convinced that TM is absolutely stable. Sorry that I can't offer you a fix, but tried everything myself and nothing worked. The worst part is that it appears to have worked so you go merrily along for a few weeks until everything once again fails - and fails in the worst possible way by corrupting all of your backups.
Update: Under 10.12.3 my Time Machine can talk to my Time Capsule for incremental backups again!
time capsule not working with sierra
