HP ProBook 450 Unable to Connect To Wireless

Hi There,

We have bought some new HP ProBook 450's. We are having a problem connecting them to the Cisco Wireless here on site.

Its a Cisco Wireless Controller WLC2125

The AP's are running 2.4Ghz B,G only

The Laptop is seeing the Wireless Network but when we try to connect it just comes up with a message saying unable to connect. The Laptops are running Windows 7 have the latest updates, BIOS and Wireless Driver installed.

Wireless Card is: Ralink RT3290

We have taken the Laptop to various sites and it connects to other networks fine. One of them being a CISCO network as well running 2.4 G.

Are there any settings anyone can think that might be wrong or need adding in the Controller end to get these to work? All other devices on the Wireless Controller connect without a problem.

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Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:
Have you checked the Encryption level that your Laptop and the Wireless router are set to. The encryption level must be the same.

dan4132Author Commented:
Yes we have also checked the Encryption level. We have had Windows Auto Detecting it and have also tried manually specifying it. Still the same result.
JohnBusiness Consultant (Owner)Commented:
Does your problem Cisco site have MAC address filtering in place?  Since your laptop works at other sites, that could be a reason.

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Emmanuel AdebayoGlobal Windows Infrastructure Engineer - ConsultantCommented:
If it's working in other site, it must be your Cisco Access point configuration.

I'm not Cisco Expert but I remember in y office when I was having the same issue, my laptop MAC address was added to somewher in the Cisco router config and after then I was able to access the internet through the wireless.

I'll see if I can contact the guy.

Pradeep DubeyConsultantCommented:
Check your wireless network configuration once for any MAC filter and also check events in that (if router rejected authentication from these laptops)

also check the windows event once.
Check your Cisco Firmware as wel.
Try the windows 8 Driver.


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dan4132Author Commented:
Wireless Firmware needed upgrading
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