All,
SEP version: 12.1.5 on server 2003 with SQL database
the live update on the server didn't kick off for more than a week due to some reason. upon retrying for couple of times the update went through after server restart. however i still have client communication error 503 (all clients). checked the communication port 8014 was open and able to telnet on the server too with this port.
As this was affecting the full scope of this server i logged a case with Symantec on priority. The agent checked all the things as i did ( disk space which was more than enough, communication ports).
support too couldn't find any logical conclusionn for the issue, so they helped backed up and do a repair to the installation. This fixed the issue somehow.
Am not sure whats with 12.1.5 there are frequent break up of application and everytime we have to do a repair of installation.