User failed to join the conference. %1 Cause: Administration issues. Resolution: Verify that Conferencing Attendant is installed in a supported topology and the dependant Front End servers are functioning correctly.
User authentication with NTLM protocol failed with error SEC_E_UNSUPPORTED_FUNCTION. This indicates a potential mismatch ...
User authentication with NTLM protocol took longer than expected (more than 15 seconds). There were %2 instances of NTLM ...
User entry update in Active Directory failed while moving user. (0) User: %1 Error: 2 Cause: Domain controller may be unreachable. ...
User entry update in Active Directory failed while moving user. (4) User: %1 Error: 2 Cause: Domain controller may be unreachable. ...
User failed to join the conference. %1 Cause: Administration issues. Resolution: Verify that Conferencing Attendant is installed ...
User has a phone number that is associated with other user(s). %1 shares same phone number with following other users (up ...
User is at an unsupported country/region. TenantId: '%1', ObjectId: '%2' User location: '%3' Cause: User is at an unsupported ...
User is enabled for SIP and homed on w14 server, but required Cluster Policy or Deployment Locator is missing. Resolve the ...
User principal name (UPN) is not set for user "{0}". You must set a UPN for the user to use role-based access control (RBAC). ...