"Time Machine can't back up - sparsebundle error 1" question

Hi,

I'm getting the "Time Machine can't back up - sparsebundle error #1" message, and am trying to see if the fix posted below is the answer:

http://support.apple.com/kb/TS2048

So, when I installed Time Capsule, I gave it a password ("network password").

Fairly recently, I renamed the Airport. Now the Airport disk password and Airport base station password are the same as the network password, and the Airport network password is different.

Is this what the Apple support message I referenced is getting at? Are these passwords supposed to be the same... ???

Thanks for any help,

reluctantuser