iTunes stops playing song without reason I'm using Apple Music and I'm still in the evaluation period, but the system isn't working very well:

Either on my iPhone or my Mac (latest OS version), when I'm streaming music, it stops playing in an unexpected way after two minutes.

The playback play fine when the music is local, but connectivity is fine in other application. I wonder why iTunes is so buggy when it comes to distant request...
I managed to fix my problem by calling Apple hotline. They asked me to do a lot of manipulation and I cannot say precisely what was going wrong. We did a test on a new test user I created on the system. I started iTunes, connected my Apple id and Apple Music was working fine.

We removed together some iTunes configuration files and managed to restore Apple Music playback in my session.

Hope it helps!