Access to KeyChain is intermittent
For the past week, signing in to reveal passwords in Keychain for High Sierra has been intermittent.
I was unable to log in to get a seldom used password. My admin sign-in didn't work.
So I changed the admin sign-in password. It allows me to sign in to my OS, and sometimes it works for my keychain. When open keychain access and click on one of my passwords, the standard dialogue box comes up. I click on "show password", enter my admin password, and it reveals the password.
But sometimes, when I click on the "show password" box, the check mark doesn't show up in the dialogue box. Instead, it comes up with a different dialogue box that says "macOS wants to make changes. Enter an administrator's name and the password to allow this."
I enter the same admin name, the same password, and the dialogue box "shakes" but I can't get access.
Any clues how to fix this?
Thanks.
MacBook Pro with Retina display, macOS High Sierra (10.13.2), 512 Gb SSD, 16 mg ram, mid 2015 15;