Time Machine won't back up onto Time Capsule
I upgraded to Mountain Lion last week, and Time Machine won't back up to my Time Capsule. When it fails, I get the message:
Time Machine couldn't complete the backup to "Tom's Time Capsule".
The backup disk image "/Volumes/Data/TomsMac.sparsebundle" could not be created (error 60)
I sometimes get the same message, but with "error 17"
I also get the following error message popup (even though the disk is the one in my Time Capsule):
The disk you inserted was not readable by this computer.
The popup offers three choices: Initialize, Ignore, Eject.
My local Apple Store Genius concluded that the problem must be with the Time Capsule, so I bought a new one. That didn't fix the problem.
Time Machine Buddy messages:
Starting manual backup
Attempting to mount network destination URL: afp://Tom%20McAuliffe@Toms-Time-Capsule.local/Data
Mounted network destination at mount point: /Volumes/Data using URL: afp://Tom%20McAuliffe@Toms-Time-Capsule.local/Data
Creating disk image /Volumes/Data/TomsMac.sparsebundle
Error 60 creating backup disk image
Failed to create disk image /Volumes/Data/TomsMac.sparsebundle, status: 60
Backup failed with error: 20
Failed to eject volume /Volumes/Data (FSVolumeRefNum: -108; status: -47; dissenting pid: 0)
I did Repair Disk Permissions and Verify Disk and everything's OK.
I erased the Time Capsule using AirPort Utility and did a hard reset on the Time Capsule.
I did a re-install of Mountain Lion and that didn't fix anything.
My MacBook Pro is accessing the Time Capsule wirelessly, as it always has.
Help!