1. Check Date & Time are accurate and not ASKEW
sntp pool.ntp.org
2. Check that your user is actually using Apple’s “/usr/bin/kinit” (with “which kinit”) and not some kinit from some third-party application environment. Some report non-Apple kinit(s) as part of their issues
which kinit
3. If you are using macOS Catalina, you may not see a shortcut to Ticket Viewer. To open it press Command and the spacebar, type “ticket viewer,” and hit Enter.
4. Check Directory Utility for AD Binding?
odutil show nodenames
dsconfigad -show | awk '/Active Directory Domain/{print $NF}'
5.
Links:
https://ist.mit.edu/macos/1015
https://discussions.apple.com/thread/1507640
https://discussions.apple.com/thread/252187490
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