I just tried the app to be sure, and it's working fine over here. The issue could be anything between the game and your phone: Your connection, your firewall, your phone itself, and the list goes on and on. The fact that nothing happens right after you scan the code could potentially mean your issue is the firewall, or anything similar that is filtering your connections. Please check and provide info about: Your phone model Android / iOS version ( If Android, Original or Custom ROM? ) Phone and PC are both connected to the same network? ( WiFi network ) Is the game allowed through the Windows firewall? ( won't work if not! ) Do you have some weird programs on your phone that could be blocking the connection? Is your router/modem blocking the two devices from communicating?