How to connect a windows 7 laptops to wifi network through GPO also sending the key through GPO.

Hi

We have a wireless network for our organisation and all the windows 7 staff laptops are connected to an old Wi-Fi network.
No we have a new wireless network implemented. The Wi-Fi Security profile for the new Wi-Fi network is WPA2-Personal with AES encryption.

Now when users power on the laptop, I would like their laptop to connect to the new wireless network, disconnecting the old wireless network,
So I have created a GPO  and under computer policy setup a wireless policy and also setup sending a wireless key through GPO and attached to an OU where all the staff Laptops is located.
Please see the link below and also copied the bat file to under the computer start-up policy ( Scripts -Start-up)

http://pc-addicts.com/gpo-wireless-settings-group-policy/

http://blog.primaryschooltech.co.uk/2012/02/sending-out-wireless-settings-via-gpo.html


The laptops are connected to the old Wi-Fi network and I was thinking when the laptop boots it must detect the new wireless GPO and connect to the new WIFI network. But the laptop is not connecting
Please let me know if I am doing any mistake.
Any help to trouble shoot and sort this problem would be great.
Thanks
Win7Wireless.txt
WirelessConnect.xml