I have a very simple default application that I\'ve created to test my Eclipse Indigo/Maven v3.0.1 setup on my Windows 7 machine. The Hello World app runs fine from Eclipse
I had exactly the same problem a while back - long story short it was a networking issue. And, yes just like you tried I could grab the file with a web browser just fine.
For testing purposes are you using a proxy, and to the proxy settings in Maven match the browser?