Both the web player and my PS4 app keeps cutting out or stuttering every couple of minutes. Sometimes it gives up after 20sec or so and skips to the next song.
My iPhone app works without any issues. I've had this issue occur consistently on three different computers, and three different internet connections (including 4G), in Chrome, Firefox and IE, on Windows and on Linux. I've cleared out the browser caches multiple times and it hasn't helped. Haven't seen any browser console errors either.
Other people I know using the web player on the same internet connection haven't had any issues whatsoever, so I wonder if it's somehow account-related? No issues streaming from any other service, just Spotify.