Hmm, first before I get in deeper than I know how to help, let me ask a few obvious questions that may simplify the process...
1. Can you surf internet sites from your audrey like before? If not, fix that :)
2. If you can surf fine, I'd suggest making a backup image of your audrey and then reflashing the thing again. If that still doesn't work, something is wrong in your ip settings most likely..
Though it is possible using the built-in editor VI vs. the image-supplied editor somehow mangles some files. Have you tried opening up the file in VI, changing the time server back to what it was before and saving the changes?
I'm no linux help, and I think you're in the right place to look for help in that area. I'm more about "it was working originally" and then putting back that way.
If you've already tried all this, wish I could tell you more. Sounds like something with your tcp/ip settings or maybe DNS / gateway issues. Changed any major network hardware lately?