Did you install the latest Pandora update from yesterday?Doesn't fix it for me. It will allow Pandora to load instead of no internet connection message. It starts to play but when I turn wifi back on then it shows Buffering and never starts playing. Just a really weird problem. Started on the last 11.4 beta and continued into ios12. Doesn't work at home or work but other devices on the same network do work so it isn't the router blocking anything.