At times you might
experience a strange kind of login issue. Most of the
users can login but one or few users can't. Most of the
times you face this issue due to SIP related AD
attributes issue.
When problem users would try to login in MOC, they will
get following error.
"Cannot sign in to Communicator
because this sign-in address was not found. Please
verify the sign-in address and try again. If problem
persists, contact your system administrator."
Resolution:
We disabled the
problem user for LCS or OCS.
Did Reset all msRTC attributes to <not set>
Re-enabled user for LCS or OCS.
Followings are the list of attributes we reset:
msRTCSIP-PrimaryUserAddress
msRTCSIP-PrimaryUserAddress
msRTCSIP-PrimaryHomeServer
msRTCSIP-HomeServer
msRTCSIP-HomeServerString
msRTCSIP-TargetHomeServer
msRTCSIP-UserEnabled
Re-enabling the users for LCS or OCS should allow them
to login.