Seninel DX4000 Recovery Process is lasting much too long

No German LOL

If it says searching I think it is looking for the PC desktop.  Did you try starting the wizard again from the PC to see if it finds it?

The recovery actually takes less than 4 hours once it starts.  If it is stuck on searching I don’t know of anything to do but  start over.  Perhaps now that the drives are initialized it will go faster, but you never know what will happen if you have to power off one of these.