ePO 4.x, 5.x

Problem:

Failed to Login to ePO console, receiving the following error:
"
you have provided invalid credentials

Retrieving logon message failed: a database error occurred

error: DB server key check failed"

Solution:

Restart the ePO and try to do fast login to ePO console

Update The ePO License.

-Go to Main | Configuration | Server Setting, choose License Key
-Click Edit
-Write the ePO License
-Click Save, restart the server

If you failed to login to ePO you will need to do the disaster recovery procedure.
https://kc.mcafee.com/corporate/index?page=content&id=KB66616

Problem:

Failed to connect, error 10061 (no connection could be made because the target machine actively refused it).


Solution:



Check Network blocking

check from the McAfee Agent if it can communicate with the server.

If there is no Network blocking, Uninstall the McAfee Agent, Restart the system and re-install the McAfee Agent.

Go to Manu | Distributed Repositories

Click on Replicate Now

Choose the SuperAgent you want, Click Next

Choose Replication Type, Click Next

Click Start Replication