Joey,
I finally decided to do this today, for my Live Plus units and I had to go into the Firewall/URL Filter tabs of my ASUS router. The router would not accept the string: http://support.wdc.com/ (didn’t like the non-alpha characters) so I shortened the string to “support.wdc.com” and the router liked it. Of course, the upgrade firmware is not even on the settings menu and I can’t even call it up anymore when I go into Settings.
Also, I can not go to http://support.wdc.com/ via my PC anymore, so I suppose if I wanted to do this I would need to remove the URL Filter temporarily in the router, and reapply it again when done.