Backing up to TimeMachine fails after a week

[distantsuns]

I've been trying to back up my Mac to a LS210D, using Time Machine. Natch. It took about 5 days to do the initial backup, then every day it seemed to be doing as expected. I go into Time Machine and verify the most recent backups, and it was ok. Until I get a message that says that there was a time-machine failure and no longer backs up. I go back into TM and it now shows just the initial backup.

Any ideas? Or will I have to just kiss the wireless stuff goodbye.

[distantsuns]

Same here. Four days to do the initial backup, now Time Machine doesn't even see it. Gonna try a Seagate instead.