Unfortunately, the connection does not work reliably. I just tried it out. I meant, instead of searching in the app (if that's the standard way - it's been a while), I scanned the QR code and thus created an initial connection. Then it worked. Or entered the product code manually. I managed it somehow via a diversion. But it was tedious (but it was only one).

Yes for sure
But can't connect them because the circle is not lit up

Have you connected your app to the bridge? And followed the instructions?