If you use a SIM card in your Android device for mobile data / internet connectivity then you will need to connect any ADS-B receiver in RWY → Settings → External Devices → Select external device network, and not in the device's own Wi-Fi settings.
Do not connect to the ADS-B receiver in your device's own Wi-Fi settings otherwise you may lose access to your cellular data / mobile internet. If the receiver has already been connected in the device's own settings you will first need to 'Forget' the Wi-Fi network as per the user manual for your device, and then connect directly inside RWY following the instructions above.