iOS app - does not find any devices

The iOS application after the latest release does not find any devices. The spinner is spinning infinitely and the message “Looking for devices” is shown. The button “Configure a new device” allows me to choose “WiFi” or “Wired” but when I choose “WiFi” (as my device is connected to WiFi) then I got the message “We could not find a wireless device”.
I tried a few times, even reinstalled the app - with no success. This release make the application unusable for me.