Resolving Maven Dependencies takes a while and finally makes Idea stuck

Hi,

Here's the problem I'm facing 

Context:

• Idea Ultimate 2016.x (all releases)
• Win10 64
• Embedded maven and external maven (3.3.9)
• Embedded JDK and external JDK (1.8.0_112x64)

After loading a project that contains several root POMs (multiple hierachical multi modules) the Maven resolver starts and runs for "hours" until it makes Idea hang.

Running explicitly maven from command line (either external or in idea) works perfectly fine.

Is there anywhere I can look what makes the maven resolution working so slow and finally making idea unusable?