while user was try to chat with each other some times they get this error message "when contacting your support team reference error id 16389" not for all the users.,.please share your thoughts.

Hi,Saamee

Are you using Mandatory user profile?If so this is by design,pleae use a normal user profile to sign in Lync.

This issue offen occurs when users sign into the Lync 2010 client using a Windows Active Directory Domain Services mandatory profile. Mandatory profiles are read-only user profiles. Since changes to the mandatory profile cannot be saved, the design of the Public Key Infrastructure (PKI) functionality does not allow this operation. This causes the creation of the secure keys that are needed for the creation of the focus for the Lync conference to fail.

Regards,

Sharon

• Proposed as answer by Sharon.ShenMicrosoft contingent staff, Moderator Tuesday, November 08, 2011 5:39 AM
• Marked as answer by Sharon.ShenMicrosoft contingent staff, Moderator Friday, November 11, 2011 5:31 AM

I have the same problem ( "when contacting your support team reference error id 16389")

How i need to do to change this profiles to "normal profiles"?

Regards

We are not using mandatory profile and getting this error "when contacting your support team reference error id 16389