|16:15:57.000 1277:A06CE720 INFO :: AddListener: "Listener 'SoapTransport' added to server link 'OCS-Registrar'." |16:15:56.999 1277:A06CE720 INFO :: StartComponent: "CLM started component 'CallManager', reporting state STARTED" |16:15:56.921 1277:A06CE720 INFO :: AddManagedCredential: "Adding new cred CManagedCredential" |16:15:56.921 1277:A06CE720 INFO :: CreateSpecificCredential: "Created CManagedCredential" |16:15:56.903 1277:A06CE720 INFO :: SetSpecificCredentials: " called with domainUser:abc\ithts0 password.IsEmpty?:0," "storePassword=1, replaceAllReportedCredentials=0" |16:15:56.898 1277:A06CE720 WARN :: FindOcsCertByUri: "No existing OCS signed cert for 1277:A06CE720 WARN :: DeleteCertFromStore: "Failed to delete key pair in hrLocal=0x80090016" Is there any setting we need for Mac users? But why it is working on other mac clients with same version. Although when i revoke certificate and check the status i get error, but when i re-enable user account it gives no error just show nothing. I tried to check user certificate on server and there is nothing there. Also when the same user try to login on another mac client, it One user cannot log in on LYNC on this MAC.