First, I’m a newbie here.
I wanted to share an apparent fix for this problem that someone e-mailed to me. It doesn’t make a lot of sense to me, but maybe it will to you.
1. In System Information, choose Sharing.
2. Uncheck File Sharing.
3. Remove all of the entries in the list of Shared Folders.
5. Now, if you use use File Sharing, go back and turn it on again and add the folders you want to share.
Well, it worked for me … night and day. And I don’t think the 2 reboots have anything to do with it, because I tend to reboot every day anyway.
Also: delete this file: /System/Library/LaunchDaemons/com.apple.audio.coreaudiod.plist