It looks like you're authenticating with a domain account, VCS\mcafeeepo. Reset the password at the domain level and then change it on the ePO server.
Thank you very much indeed,
Sorry, one thing i forgot to inform, Actually someone was installed this ePO server and configured with his domain ID and all of sudden he left from Job. And his ID have been deleted from AD permanently.
Now i wanted to replace this (vcs\mcafeeepo) service account in all parts of ePO.
Please suggest how to replace this ID in DB config
I already tried first solution,
Test failed: com.mcafee.orion.core.db.base.DatabaseConnectivityException: Failed to get a connection: Cannot open database "ePO_WDESAVEPOT01" requested by the login. The login failed.. Navigate to https://localhost:8443/core/config and verify database connection settings.
And more over, The following two services not starting on ePO
McAfee ePolicy Orchestrator 4.x.0 Event Parser
McAfee ePolicy Orchestrator 4.x.0 Server
Finally we reinstalled SQL data base instance and configured with service account. Now i'm able to log in to ePO.