Hi
I doubt if its your firewall, to find out, just disable it and restart, see if it turns up.
More likely a sharing issue, but I found Win 7 to be the easiest to setup as far as that goes.
http://community.wdc.com/t5/Network/Network-Shares-Not-Working/m-p/141960#M267
http://community.wdc.com/t5/General-Discussions/No-Network-Shares/m-p/99706#M2132
There are loads of threads like this.
Just type share in the search box.
Good Luck.
P.s - you dont need that discovery software, you should see the Hub under the network.
