Hello Friends,
We got an outage after upgrading Symantec, 11.1.XX to 12.1.XX
1) We had 230 plus SEP clients.
2) We had only 40 licenses available.
What i did ?
I had upgraded SPEM from 11 to 12, and ran the live update.
What had happened ?
We support Citrix, and Symantec is the product we use on our citrix servers, so i represent for symantec in my team, as soon the SPEM was upgraded, users when launching the citrix applicatication was getting "Access is denied" error.
How the issue was resolved ?
Stopping "Symantec Endpoint Protection Client" on our domain controller.
Stopping "Symantec Endpoint Protection Client" on our file server.
My question
1) I want to know what has caused this outage ? thankfully yet i am not removed from my company, but i made my company suffer almost 14 hours of outage.
2) How to find the RCA ? i am sure it is related to symantec firewall policies ?