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aussiebart
24th October 2009, 11:16 AM
Could someone help me here? I'm a pretty naive user of Macs - i should warn you!

I have a Macbook Air, Leopard OS and I have just bought a La Cie external hard disk drive (250 Gigbytes) to use as the back up drive for my laptop- using the USB interface and Time Machine.

Everytime I try and install the drive though I get the same message - 'TM could not be configured. The built in network interface could not be found'.

What is this all about? I don't want to back up wirelessly (through Time Capsule?).

aussiebart

FineWine
24th October 2009, 11:19 PM
I did a Google on your error code and found these two articles for you.

Time Machine could not be configured. The built-in network interface could
(http://discussions.apple.com/thread.jspa?threadID=2021925)
Time Machine: Troubleshooting backup issues (http://support.apple.com/kb/HT3275#5)

Red "i" message: "Time Machine could not be configured. The built-in network interface could not be found"

From the Finder's Go menu go to this location:
/Library/Preferences/SystemConfiguration/
Copy the file "NetworkInterfaces.plist" to the desktop (to make a precautionary backup).
Delete the file "NetworkInterfaces.plist". Enter administrator name and password if prompted.
Restart your Mac.
Once restarted, reconfigure your the Network and Time Machine preference panes in System Preferences.
If the issue persists, contact an Apple Authorized Service Provider (http://support.apple.com/kb/HT1434) to have your Mac's network ports checked.