Will try if unplugging the phone helps (or even not configuring it). Would at least be an anoying workaround.

Oh i see. The forum shows me an error message on posting, but it works anyway. Great. The web forums seem to work as good as the webinterfaces of the device. :D

I ordered a VR2100v. I reproducible hangs the webinterface as soon as i click "Advanced Settings". I tried firefox, chrome and edge from a PC and also from a smartphone and a tablet. If from anywhere...