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Unable to get an IP on Wireless. Authentication failed at ACS.

We are about to introduce new HP laptops in our environment and while testing we are facing issues with Wireless connectivity. We are not able to connect to office's internal wireless network. It shows limited connectivity or connected on the laptop but getting 169* IP address. On ACS we are getting the below mentioned error:

ACS error1.JPG

We have also observed this error:

ACS error2.JPG

However we are able to connect to other wireless networks. Only this internal wireless network is causing issues. We have checked the self signed certificate in the right store(Trusted Root Certification Authorities). The SSID is also correct,

This issue has been observed only with New model laptops that uses Intel(r) dual band wireless-n 7260 drivers for wireless. The older models of laptops are able to connect to the same network without any error with the same self signed certificate. All laptops are runnig on Windows7 64bit OS.

Please advise. Urgent help required.

2 REPLIES

Unable to get an IP on Wireless. Authentication failed at ACS.

which driver version are you running?  Intel shows the latest is 16.6.0 for Win 7 64.

if this issue is only with the 7260, you may want to contact Intel directly to see if they have a known issue or debug driver you can run

HTH,
Steve

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Please remember to rate useful posts, and mark questions as answered

HTH, Steve ------------------------------------------------------------------------------------------------ Please remember to rate useful posts, and mark questions as answered

Unable to get an IP on Wireless. Authentication failed at ACS.

The EAP session timeout error is usually something on the client itself.

What AP models you have? which radio you use?

You try different drivers, different OS (if possible) and different radio band to isolate further.

You may also collect "debug client " output from the controller's CLI to check where is the missing piece (usually client side issue that stops replying to the WLC at some point).

Intel should be able to check from their side and provide a solution for this issue.

HTH

Amjad

Rating useful replies is more useful than saying "Thank you"

Rating useful replies is more useful than saying "Thank you"
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