Not able to sign in to iCloud on older mac pro
When I tried to log in to iCloud, it came back as password incorrect. It's the same pswd that is correct on all my other devices. So I went ahead and changed my password from the mac pro. Went thru all the steps, updated my pswd on all devices. However, it still says my password is incorrect when trying to log in on my mac pro. I'm not updating this machine as I have an old copy of photoshop and final cut and I can't afford upgrades or subscription based apps. Need some help figuring out why iCloud is rejecting my correct passwords.
2012
Mac Pro
Version
OS X 10.10.3