SEP rolls back install

I have a remote client that was not connecting to the sepm server. I removed the client and tried reinstalling but the silent installer was hanging and would not complete. I created a new interactive installer and copied to his system and when running that it start to write to the registry and then starrts rolling back the install. I've tried installing in multiple user accounts. I performed the cleanwipe on the system to verify that all old files are removed but it fails at the same point.

I have included the SEP_INST.LOG.

any assistance would be appreciated.