Wireless Connection problem with hidden SSID

[darren]

Hi guys,

I'm a IT Support in our company, and currently I'm facing a problem on one of the staff's laptop for connecting to our internal wireless network that is hidden. The connection are configured correctly and in fact the laptop can connect to the wireless network correctly without any problem on last week, but today it just stopped working (even detecting) that particular wireless network.
It can detect all other wireless network and even another hidden SSID. There are multiple laptops of the same model, and all of them are working fine except the only one laptop that are having problem.

The model of the laptop is HP Probook 4440s running Windows 8.
The AP we used are Cisco Aironet 1131 with Cisco WLC 4402.
Any help would be greatly appreciated.

Regards,
Darren

 

[Wullail]

Probably obvious (and already done) , you've removed all wifi connections totally from the laptops configuration and re-added that one again manually?

 

[darren]

Probably obvious (and already done) , you've removed all wifi connections totally from the laptops configuration and re-added that one again manually?

Thanks for your reply and yes, it has been done.
I deleted the connections with the cmd and re-added it once again but still with the same result.

 

[Wullail]

Just going through the obvious here...


Do the protocols on the adapter being used match what is installed on the other laptops?

(When I used to do IT support , I often had a user saying 'no , no , I didn't change anything' ...but.... )

 

[darren]

Just going through the obvious here...


Do the protocols on the adapter being used match what is installed on the other laptops?

The protocols are the same.

 

[Wullail]

The only thing I can think of is it's at the wifi router end , something may have changed there...perhaps the MAC for that laptop was blocked from accessing the wifi network for some reason?