Lesley Carhart 
One of my favorite modern cybersecurity design things is when something on the server side authentication fails instead of your actual credentials / MFA, but the failure error message is identical so you spend an hour doing resets and second guessing yourself only to have everything work perfectly a little later on.
JohnOCFII@hacks4pancakes IT NEVER believes it could be their back-end SSO infrastructure. Listen, I was there when SSO was new. It CAN be the backend. So frustrating.