Unable to authenticate to any atlassian products after server patch and change to MFA

[Trevor Wood]

We currently use Active Directory to authenticate our Confluence, Jira, Bitbucket, Bamboo and Crowd instances.  Two things happened this week, and I am not sure which one or if both had to do with this issue.  One was a routine patch to our server, and the other is our systems team implemented MFA for O365 products.  Now, we cannot log into any of our Atlassian services, getting a rather generic message:

A colleague who was already logged in is currently the only one able to access any content.  An error he encountered is more verbose and begins with: 

com.atlassian.crowd.exception.runtime.OperationFailedException: The following URL does not specify a valid Crowd User Management REST servi...

[Brant Schroeder]

@Trevor Wood 

I would suspect that it is the MFA.  Have you checked the server logs what are you seeing there?  You should also be able to login as an admin to make adjustments to the settings by doing this https://confluence.atlassian.com/jirakb/restore-passwords-to-recover-admin-user-rights-972329273.html#:~:text=To%20recover%20administrator%20user%20rights%3A&text=Start%20your%20Jira%20nodes.,specified%20in%20the%20system%20property.