Haven't been able to log into Messages for 6 months
I made the mistake of turning on 2-factor ID for my Mac products, and I haven't been able to log onto Messages on my iMac with Yosemite 10.10.5 since.
First, I am asked to sign in.
OK, now I have input my iCloud password....but because I have two-factor turned on, I get this prompt:
Fine. I use my phone, and get a code, which I type in. Now I'm in my iCloud account, and all is good.
Except....
I'm in iCloud, I've been verified, but Messages still isn't satisfied. It wants me to 'create' another app-specific password. But if I click on 'create' I'm taken right back to my signed-in, verified iCloud account.
I do this 3-4 times in a row, and Messages still isn't working. Finally I get frustrated and select 'Skip Setup',
and then my account becomes entirely greyed out and listed as 'Inactive'.
I've been locked out of messages for 6 months now, and every once in a while I check back, usually after an update, to find myself still locked out. It's exasperating. Any ideas? I've seen the idea about correcting the time and date, but my time and date are correct already.