My Garmin Forerunner 230 recently lost connection with the heat rate monitor. I tried changing the battery out on the hear rate monitor. It still links with my Garmin 520 plus. I purchased a new heart rate strap and monitor. The new one also connects to my Garmin 520 plus, but it cannot be found by my Forerunner 230. Any suggestions? This happened after September 10, 2019. Looking at some other posts there seems to be an issue during this time frame with the 235 as well.
