I was able to setup all my music earlier for 4 hours, now each time I open iTunes on the Mac its unable to connect to the iCloud music library. All my iOS devices work just fine. I've tried signing out/in of the iTunes account, turn off/on iCloud Music library in General->Preferences. Is anyone else having issues??? There's a big thread on Apple's discussion board. EDIT: doesn't connect on my iTunes 12.2 on windows either.