@thigg : …and where in the phone is the name ‘Xperia10III’ set?
until now I always logged into the phone with ‘ssh defaultuser@192.168.0.x’, [enter] , then terminal asked me for password, then i was logged in. The host address (x) i read from Settings/developer tools.
edit: Does this also work, if the IP-address the phone gets from the router, changes sometimes?