Re-register device in central withoput reinstalling
Why is there no simple way to add a device in to central without reinstalling Endpoint? It should be just a case of telling the Client to register. A full uninstall and reinstall is just ridiculous especially iif you have lost the tamper protect code.
If this is a Linux server you can do this:
In Sophos Central got to Protect Devices on the left, under Server Protection, click Show Command Line, there will be a command you can run on the server to re-register it.