Had to change the SQL password for the EPO user today. After changing the password used <eposerver:PORT>/core.config on the local console of the server and changed the password in EPO there. Restarted all services etc.
All appears to be working fine, but curious if there are any other steps that should have been completed.
Try using command prompt.
Osql –S yourservername –E
1> EXEC sp_password NULL, ’yourpassword’, ’sa’
Seeing if there still has errors.
This article is given 4 methods to change sql password, that could be helpful.