Can't disabel Endpoint Protection on UTM 9.506-2

Question

I can't disable EP with option " Delete ALL data". I'm getting "Socket failed, error connecting to Live Connect broker." message. 
 Nothing is added to the Endpoint Protection log. 
 
 I know how to disable via telnet, but is the also a way to do the delete via telenet to start from scratch again? 
 
 Thanks

Alexander Busch · Accepted Answer

Maybe have a look at

Tom- · Answer

Thanks Alexander, 
 that was finaly what disables Endpoint Protection and deletes everything: 
 Management -> System settings -> Reset configuration or passwords -> Reset UTM ID now