This issue is really driving me insane - my FR230 is dropping the HR monitor about every 30 seconds and thus resets to 72 BPM every time. I am using the Scosche rhythm+ and have disabled Bluetooth from my FR230 while training as this helped with the problem for a while, but it is back with a vengeance with the 6.30 firmware.
Somethings is interfering, I get that, but what? Anyone have a clue? I am always training in the same room, nothing there has changed and the problem comes and goes. This happens both on the treadmill and while doing yoga, so it is not the movement.
Anyone venture a guess if it is the Scosche or the FR?
Edit - I've unpaired and repaired, restarted the FR - the only thing I haven't tried is formatting the FR. I don't have a secondary HR to test with, unfortunately.