Iphone constantly disconnects from Garmin 540 solar

Hey guys new to the forum; I have a 540 edge solar that I use for MTB. I love it to be able to use and control my music player in my phone through the 540 edge.

Over the last month, the phone and the 540 disconnect constantly over a ride and the music controls sporadically work (always disconnecting and reconnecting). 

I'm on version 20.19 and otherwise the 540 works great but the music control feature is quite important to me, also when this is happening I also can't get text messages to my 540 since the phone disconnects and reconnects to the Garmin unit. Please help!! Thanks in advance!