New Post: No Internet, slow startup of WPF toolkit

Hello all and thanks for reading...
I have 3 pc's win 7, Net 3.5 connected to a network but WITHOUT internet connection.

I've made a dummy application in wpf NET 3.5 that just adds Wpf toolkit and loads busyIndicator.
When i'm starting the app it takes like 20 seconds to start.
If i unplug the cable from the network adapter its start right away.

Any suggestions how to fix this or what could be the problem ?
Thank you