Time machine went down again later in the day on Sunday.  Ive tried to set it back up, even did a remount.  It just wont stay up.  What now?


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This is tricky since Apple doesn't officially support time machine via an airport extreme. Let's make sure first that it's connectly correctly. Why don't we unselect the drive within the Time Machine prefs in system preferences then mount it via the finder window by selecting the airport extreme icon. Once it's back on the desktop we should be able to again return to the Time Machine system preferences and select the disk once again.

I would suggest also going to the finder preferences (command + , from the finder) and selecting to show "Servers" just so you can keep an eye on the extreme's time machine disk activity.