I run the iOS app, and ever since a recent update the app disconnects my Polar HR Monitor...in the middle of an activity. Most of the time I have to rediscover and replace/re-add it, but even then there is no guarantee it will stay connected for the duration of the workout.
I have replaced the battery, and the monitor does stay connected to the Health app, which I did just as a test.
Just wondering if this is unique to my experience, or if others are having similar issues?