An application error is displayed after logging into the Control Center.
2019-01-09T21:41:13+05:30 (ERROR:2422.54671328):  Error creating new connection: Unknown error 336150661.
Jan 09 2019 21:41:13 [BrightmailScheduler_Worker-33] [ScriptHelper] ERROR - com.symantec.smg.controlcenter.BrightmailException: The Agent running on 127.0.0.1 is temporarily unreachable. Please check the specified host. ; nested exception is: java.net.SocketException: Connection reset
This issue has been addressed in the 10.8 release of the Messaging Gateway. Please update your appliances to take advantage of this update.
For older versions of the Messaging Gateway, the workaround is to restart the agent service on each SMG scanner, one at a time. This should alleviate the issue temporarily.
On the command line run "service agent restart".