My Windows Firewall is always off, and we have an antivirus thing, but it's easy to turn off the firewall on that. So I don't think it was a firewall...
I don't use a router either 8)
I did exactly the same thing I did when I was originally able to connect.
One thing that is a little weird is that it says version 1.001, even though when it updated, it dl'ed 1.006.