First thing to do is to assign a fixed IP address for your MyCloud. With the virginmedia hub it is best to disconnect your WDMyCloud from the network first and re-boot the hub. Before you disconnect it, make a note of the MAC address for your MyCloud. Then follow this guide to set up your router.
https://www.youtube.com/watch?v=Dr46nhKhHI4
This will prevent your router from changing the IP address of your MyCloud and disappearing off your network.
Once you have a stable MyCloud you can disable the scanning services following this guide.
