So i’m assuming you’ve checked the Live Hub has an IP Address ?
Setup > About > Network Info (should be an ip number there eg. 192.168.1.3 )
if there is … open your web browser (firefox, google chrome etc) and type the IP into the Browser address bar
If you can log in to the WEB UI (Interface) thats good … if can’t, check your PC’s Firewall in case it’s blocking it
Now on your WDTV Live Hub … check the following
Setup > Network Settings > Network Share Server > ON
Now, Download “_ WD Discovery Software _” Install it and map your WDTV Live Hub as a Network Drive in Windows
http://support.wdc.com/product/download.asp?groupid=1010&sid=206&lang=en