Likewise, why can't I play anything on Spotify?
If that doesn't work, try restarting your router. If you're using a data connection, check you have enough data allowance (although we recommend using WiFi if possible). Make sure Spotify isn't in offline mode (in the app's Settings, under Playback). If possible, try it with a different WiFi network.
Secondly, why is Spotify not playing sound? As well as there being a system wide volume level each app playing sound also has a level and for some reason this is sometimes muted for spotify. The other thing to check is the output device settings in control panel. Windows may have decided to output spotifys sound somewhere other than your speakers.
Beside above, why are all my Spotify songs greyed out?
On the desktop, the greyed out Spotify Songs will result from the poor network connection of your computer, like the lack of bandwidth, or the suddenly switched-off WiFi of your computer. Besides the greyed out Spotify songs will be caused by the offline mode are unexpectedly opened on your iPhone and Android devices.
Why will Spotify not play when my phone is locked?
Notification SettingsOpen Settings and then tap on Notifications & status bar. Check that the Show notification icons and Show on Lock screen options are toggled on. Otherwise, you won't see notifications or shortcuts for any app on the lock screen. Tap on App notifications.