I can't make playlists available offline since 2 or 3 days on my mac (10.8.2) and iPhone (iOS 6). Streaming is working fine. Error message on mac: "There was a problem with the Spotify server." and iPhone: "There was an error communicating with Spotify [...]"
I restarted my router, firewall,... without any success.
Steps to reproduce
1. Fresh install (remove cache, data,...)
2. Make a playlist available offline
3. Wait 10 sec
4. Error message on top
OSX 10.8.2 and iPhone 4S iOS 6
I have my premium account for a long time and never had any issue before.