Does this not work when Andorid's VPN is enabled?

[amithm7]

I'm not using a VPN, but a DoH / Firewall app, that works through Android's VPN interface.

WebDrop is unable to detect devices on the same network / WiFi until I turn off the VPN.

[subins2000]

Check if the room code is the same. You can find the room code by clicking the "Share invite link" button (the globe icon).

[amithm7]

Yes, the room code is the same.

Also, I just noticed. It works in Brave Browser (Chrome 90) for some reason. On both Firefox 88 and Chrome 90, it is only able to detect other browsers in the same device; not the one on PC.

I'm on Android 11.

[subins2000]

Device can only be detected if WebRTC connection can be established. Maybe when the Android's VPN is enabled WebRTC fail to connect in those browsers. I've had this issue in Chrome Android webview once.