Can't run on Watch...Another one

My watch has debugging on.
My phone has debugging on.
My phone has the APK installed and running

My watch is connected to the phone via BT. The phone is connected to the computer via USB, with USB transfer on and Debugging on.

When i scan for devices i can see a device. When i click this device from the list nothing happens. I have restarted both my phone, computer and watch.

What have i missed?

If this is Galaxy Active2 or Galaxy Watch3 they won’t connect with SDBoverBT. You need to connect to those devices with WiFi. Also in the Watch Connection be WiFi is always on and not Auto although you can ping it it won’t allow a connection.

Once you connect you need to generate Author and Distributor Certificates. If you were able to do that then the issue is not accepting the RSA Encryption Key.

Samsung Developer Relations