Thanks for hint. It's working again. cat /etc/default/unifi JSVC_EXTRA_OPTS=-Xss1280k -- jc On Thu, 22 Jun 2017 07:30:55 +0000 André Schild <a.schild@aarboard.ch> wrote: > Adding these options to JSVC prevents it from crashing: > -Xss1280k > > André