Ok. I’m starting to understand but still no success.
Using Fing as you suggested, helped me finding the BLI IP-adress.
I changed the network settings of the Hue Bridge to manual and entered the same IP-adress as the BLI.
When I do that however, the two devices seem to have a conflict with each other. The BLI is constantly losing connection and is reconnecting all the time.
What am I doing wrong…?