Pandora, Facebook and Internet connectivity issues since update to Marshmallow

A

AC Question

I can't tell if my phone is just going to sleep and turning off connectivity but when my screen shuts off while using Pandora it won't play the next song until I "wake up" the phone. And Facebook won't refresh until I close and restart the App. And OK Google doesn't work the first time because there's no connectivity. Seems common to connectivity. Please help.