Resolved: Kerberos KDC hardware problem

The Kerberos KDC server,, was unavailable from about 2:30 p.m. to 2:55 p.m. During this time, authentication may have been slightly slower as clients who tried fido would timeout waiting for a response before trying the next KDC in the list. The other two KDC servers were working correctly. Staff determined the cause of the outage was due to a failed hardware component that was automatically removed from service.

More information: Resolved: Kerberos KDC hardware problem

Story added 19. September 2014, content source with full text you can find at link above.