Hmmm, no clue.
You say it used to work just fine, and now doesn't for everyone in the office? It sounds like something has changed in the network connection that is causing an exception in NetEdit that we aren't catching. I would love to know what the exception is so we can fix it, but I'm not sure that will make it work in your case, since my guess is that some kind of firewall change or something (maybe even on our end) is causing the broken network.
I'll take a look at it on Monday.