Is this an ePO manage or standalone?
The best thing is to try to re-install the McAfee Agent as it resolves the issue in many ocasions.
Make sure you do not have anything (Firewall...) blocking the access to ePO/internet
It is an epo managed System. But i uninstalled the Agent and VSE. No changes. If i install only vse the same error occures. I tried the "VSECleaner.exe" but it doesent Change anything.
Can you uninstall the McAfee agent like this:
C:\Program Files (x86)\McAfee\Common Framework\FrmInst.exe /forceuninstall
If the after uninstalling and reinstalling the agent does not work, please go to C:\ProgramData\McAfee\Common Framework and open the sitelist.xml and paste the content in here
It is a pleasure
Can you follow this KB please?
It says the steps to follow to troubleshoot this kind of issues.
Please, let me know the outcome