I'm using Netbeans 7.2 and Maven 3.0.4. For some reason, my computer can't download dependencies or even the repository index. When I run a project and Maven tries to download a repository e.g. from "http://repo.maven.apache.org/maven2/junit/junit/4.6/junit-4.6.jar", the progress indicator is stuck at 0%. The same thing happens when Maven tries to download the repository index.
Basically, I have the same problem as in this question: Netbeans: Transferring Maven Repository index: Central - stuck at 0%, but the selected answer doesn't work for me. I have also tried using a different mirror, but nothing seems to work.
SOLVED
Ok, turns out my AVG Anti-Virus 2012 was somehow stopping the downloads. Disabling AVG solved the problem. More specifically, I think it was the LinkScanner module of AVG that was responsible for stopping the downloads.