Unable to Connect Windows 7 machine to the Accesspoint. Windows XP machine working good

[npatel_vits]

I have Cisco 1140 AP which I have configured as WPA2-AES encryption.To get maximum throughtput I shutdown 2.4 GHz interface and transmitting signal only on 5 GHz and channel width is 40 MHz.I am not broadcasting SSID

Now when I connect two windows XP machines to wireless they are working good and getting 300 Mbps throughtput.Now I configured another three WIndows 7 machine( I am sure that I did correct conffiguration in windows 7 machine and I choose "connect even if network not broadcasting")

But after configuration I am not able to see my wireless network and it is not connecting itself. Any suggestion please ?

Thank you,

Nilay

[George Stefanick]

Few questions --

You using WLCs or autonomous access points?

WPA2/AES PSK or 802.1X

[npatel_vits]

It is autonomous AP. My Win 7 laptop is 802.11n capable but it connects to AP only when I turn 2.4 GHz int on..

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[George Stefanick]

So it is working on the 2.4 side and NOT the 5 side right?

- Is your 5 GHz radios on?

- Is your client radio 5 ghz enabled?

[npatel_vits]

Yes my 5 GHz radio is ON.Other xp machine are connect when I shutdown 2.4 GHz interface..

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[George Stefanick]

So XP devices are using teh 5 GHz...

Sounds like a config / problem on your win7 then. Did you check your supplicant and 5GHz enabled in it ?

[npatel_vits]

Ya I will check. You have any idea that how do i check it?

[George Stefanick]

You can drop into the card settings under the hardware section and see if 5 GHz is turned off.