Quelea mobile not finding server

Hi

I had to reinstall my computer and thus also Quelea. Only now I can’t use quelea mobile for some reason. Can anybody help with troubleshooting? The app on my phone doesn’t find it, but when I go to the ip adress in my browser on my computer, it works fine. When I go to the ip address on my phone, it doesn’t work.
Yes, both devices are on the same network.

Thanks for any help!