Never had this issue until recently - so I'm assuming it may be related to recent software updates on my Instinct. Previously, when I started the default Hike app, it would show that the HRM-Dual was connected within a second or two. Now I often have to turn off the watch and restart it for the HRM to connect. Anyone else notice this? Once it connects, it has a very reliable connection. It's just a pain to have to restart the watch when it didn't have to do this in the past.