Inventory agent not working under HyperV

We are using OCS NG 2.1.2

I created a GUI to manually run the inventory agent.
It wil run following command in the background:

ocsinventory.exe /server=xxx.xxx.xxx.xxx:xxxx/ocsinventory /debug=2 /ssl=0 /work_dir="Agent"

When running this command in a VmWare virtual machine it works ok.

When running u-in a HyperV virtual machine nothing is happening, even the SysInfo.log is not created.

Am I doing something wrong or will the agent not work in a HyperV virtual machine?