Bluetooth issues

Mazda 6 2017 Touring
My Bluetooth has been working fine since I bought my Mazda6 about 10 months ago. Today, my iPhone 6 is not connecting after multiple attempts. Called Mazda support. They said there was an issue with my Sprint service and recent version 11.1.2 and the Mazda compatibility. Anybody hear about this? Any more information regarding this would be appreciated. Thanks, Daniel