Why Amazon's Alexa Stops Playing Music And How To Fix It

[halleaspen]

If your Alexa Not Playing Music on your command, you don’t need to be disappointed. Sometime's Wi-Fi connectivity issues can cause media and music to buffer or not play. Reduce Wi-Fi congestion by turning off any connected devices that you're not using. ... Move your device away from walls, metal objects, or sources of interference like microwave ovens and baby monitors.

[Akshay_M]

Prime Music only works for Amazon prime members. So if your Echo device has multiple profiles linked to multiple Amazon accounts, you need to be signed in to the one that has a Prime membership. To switch users, issue the ‘Alexa switch user’ or ‘Alexa switch profile’ command.