Fail during initial setup of Turris Omnia

During initial setup I choose the default “Use automatic updates”. I goes fine for a lot of packages but suddently it stops (I guess the router reboot), and after reboot I can not connect again. Even a reboot more of the router and disconnect the cable from my laptop does not help. The router does not function at all.

Work around: Press reset until 3 LED lit up to reset firmware, and choose “Turn automatic updates off” next time. When setup is done, turn on automatic updates. Then it is working.