Not sure HRM200 is connected

Hello everyone!

I recently purchased an HRM200 to replace my HRMPro, which had stopped working a few months ago.

Everything seems to be working: the message “External heart rate monitor” appears on my watch when I start an activity, and the green LED flashes three times. However, when I check the activity recorded in Garmin Connect, in the “Devices and Applications” section where my watch is displayed, I don't see the HRM200. The HRMPro was displayed here, so I'm wondering if the HRM200 has been used correctly or not. Moreover, I have seen that the LED wasn't flashing anymore at the end of the activity.  

Thank you for your help!

With HRM PRO

With HRM200