Cannot assign a client authentication token (Client Management logs )

We are getting multiple Error in client managemen logs, could you please let us know why this error getting.

and also we need for solution for this issue.

514         3/23/2015 11:27:09 PM  Error      12120002             Cannot assign a client authentication token. There was a general communication failure.

515         3/23/2015 11:27:09 PM  Warning               12130002             [Client authentication token request] Submitting information to Symantec failed.               

516         3/24/2015 2:27:10 AM    Error      12120002             Cannot assign a client authentication token. There was a general communication failure.

517         3/24/2015 2:27:10 AM    Warning               12130002             [Client authentication token request] Submitting information to Symantec failed.               

518         3/24/2015 5:27:11 AM    Error      12120002             Cannot assign a client authentication token. There was a general communication failure.

519         3/24/2015 5:27:11 AM    Warning               12130002             [Client authentication token request] Submitting information to Symantec failed.