iCloud Keychain

[lerimer]

Ever since I've been running Sierra, I have not been able to enable iCloud Keychain. When I highlight it and enter the password, it unchecks its self once again. I'm running my hack as a iMac 14,2 because initially I was running it as a Mac mini, but after the 2nd beta, my gtx970 stopped loading. Changing it to iMac fixed the issue. But then I lost keychain in the process.

 

[KONKY1]

Did you tie your cell number with your iCloud account? Did you try restarting?

I've had this issue in the past but I can't remember what I specifically did to get rid of the problem; but I think is was along the the lines of clearing and rebuilding the kext cache.
Do not take this advice as verbatim, all systems are different.