If the VDP is hanging during its "Reconfiguration of the network" and not progressing, check the following:
SSH or putty into the appliance.
Run the command "ls -l /usr/local/vdr/etc"
You should see a file named vdr-configuration-deploying.xml (NOTE : named deployING not deployED).
If this file exists and is zero bytes in length, then the VDP appliance will hang during its network reconfiguration processing.
Remove the file and restart the appliance via OS shutdown.
Note, if this solution applies to you, you may need to reconfigure the VDP appliance after its reboot, as this situation should only occur if the root partition was full when you were trying to reconfigure the appliance.