Wireless Time Machine back up to external HD

[GLWOLL]

I had Time Machine making wireless backups from my MacBook to a LaCie hard drive plugged into an Airport Extreme Base Station. It's worked great for at least year. The 10.5.8 upgrade seems to have broken it. It's still not an Apple supported configuration.
Frankly, I can't remember what I did a year ago to get it working. Any hints? I'll keep them this time.

Thanks for your help

 

[MKSinSA]

Not sure what you did

in the first place but does this seem vaguely familiar?

There are links to other issues there, also. HTH

Cheers!