I have AT&T as a internet provider with a 4G LTE subscription. I have also been a premium subscriber for a long time since I dropped my satellite radio subscription. I previously had a LG G2 and it and Spotify played nicely for a long time. What I think was a random occurance is that spotify would stop playing a playlist and report that the internet connection had died. AFter tinkering with it for awhile, I chalked it up to a bad phone and replaced it with a HTC One m8. AFter 2 weeks, I have the exact same problem. Only this time, it happens without the screen timeout occuring. I can still access the internet through the web-browser and facebook but spotify doesn't seem to see the connection until I kill the app and restart it. I'd rather not switch to another service as I havea good set of playlists built up, but this is incredibly annoying!
Can you confirm the software version your M8 is on? I know a lot of users were havng ifficulty with Mobile Data die to the customisation some Network Providers had put on the software of the phone, but a lot were saying once they got Lollipop this was fixed.
Please use the search feature before posting a problem/bug/idea. What's a Spotify Rock Star, and how do I become one? Using Spotify Since March 10th 2009 Twitter: @mechanimal82