"An error has occurred" updating my XL's

Since it happens on BOTH of my XL's, I don't believe it has anything to do with the XL itself. I've tried uninstalling and reinstalling the Home software and get the same error. Both XLs work just fine, and I was able to update the maps with the previous update last quarter.
There's an article that talks about wiping the Tomtom and reloading everything, but there's nothing wrong with the Tomtoms - If the error was only on one of them then I'd believe the article.
Suggestions?
Answers
Useless.