A Symantec Endpoint Protection Small Business Edition cloud (SEP SBE) agent shows Agent Upgrade pending in the portal but after multiple restarts the client does not update locally.
To manually upgrade your client you can do one of the following:
OR
SymRedistributable.exe -silent -refreshall
If the agent still fails to upgrade uninstall and reinstall the agent using the removal tools to ensure you remove any corrupted remnants.