elfstone

I have a problem installing expenology. Everything goes well until the finalization of installation. At that time my server loses connection to lan and i get a workstation not found notice at the end. When booting from usb key everything is ok and server is found without a problem. Is it possible that my motherboard is not supported jet? I read somewhere on the forum that Haswell is supported already. My motherboard is: https://www.asus.com/Motherboards/H81IPLUS/.