Changing ip of xiaomi airpurifier

I had to change the IP range of my network, now the Airpurifier is not seen any longer. Since I can’t add a new entry in Xiaomi Miio (getting an errer each time), the easiest would be to just change the IP of the existing integration. But even after a long search I cant find the setting where the IP is stored:-(

Anyone can tell me where to modify the Xiaomi Miio integration?