Cannot Connect Client to Windows Home Server 2011

I have an office of three computers and new file server running Windows Home Server 2011.
Two of the three computers are running windows 7 64bit Home Premium, and connected to the server dashboard hassle-free.
However, the last computer, running Windows 7 64bit Professional, displays an error message after I enter the server password.
"cannot connect this computer to the network"

I can clearly see the server on the network map, and I can successfully ping it.
I cannot however access its website at http://servername/connect

I have tried all of the troubleshooting steps listed here
http://onlinehelp.microsoft.com/windowshomeserver2011/computer-connection-support-2.aspx

I have also disable the antivirus, and opened ports 55000, 56000, 1138 and 8192 for inbound and outbound traffic.

Whatever it is, its definitely isolated to the client, because I have two other machines running windows 7, on the same network, that have connected fine.
All clients and server are also a part of a home-group, in which i can clearly see other computers and server folders from the troublesome client.

SOLVED: Computer had an additional Wireless Card, when disabled and set on LAN only it worked!!!

Please delete mod