After upgrading my iPhone 5 to iOS 7.1 the Messages app on my OS X 10.9.2 installation can no longer send messages via iMessage to other iMessage users. Sending messages via other services such as Google Talk is working fine. I have tried signing in and out from my iCloud account in Messages. Also, nothing has changed on the firewall I'm connected through.

Any ideas?

2 Answers 2


Restart your computer. That solved it for me.

  • Restarting is a good idea whenever you install any system upgrade.
    – Ɱark Ƭ
    Apr 23, 2014 at 23:33
  • I think I didn't think about that option initially since the upgrade was on my phone, not my laptop.
    – donut
    Apr 24, 2014 at 0:12

Try opening Activity Monitor, find and quit the apsd process (Apple Push notification Service Daemon). The process will automatically restart itself, and this can fix the issue.

  • Thanks! If I ever run into this issue again I'll give this a try. However, I haven't had the problem since I restarted my MacBook which would have effectively done that.
    – donut
    May 9, 2014 at 20:25

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