cant add any user to lync 2013

Hi hello 

after installed lync 2013  i cant add any user and got this error:

Active Directory operation failed on "ActiveDirctory.mehr.lab". You cannot retry this operation: "Insufficient access rights to perform the operation
00002098: SecErr: DSID-03150BC1, problem 4003 (INSUFF_ACCESS_RIGHTS), data 0
".You do not have the appropriate permissions to perform this operation in Active Directory. One possible cause is that the Lync Server Control Panel and Remote Windows PowerShell cannot modify users who belong to protected security groups (for example, the Domain Admins group). To manage users in the Domain Admins group, use the Lync Server Management Shell and log on using a Domain Admins account. There are other possible causes. For details, see Lync Server 2010 Help.

thank u all.