Xirrus wireless radius problems

We are having problems with several of our access points, specifically Xirrus XR-500's.  Set with the identical configuration as multiple others in the building, and correctly broadcasting, authentication fails for new or existing Radius clients.  The only logging states stationACLFailure and Station RadiusAuthFailure.  Any ideas on what's breaking?  The setup works well on all the rest of our Xirrus access points, including several other 500 series access points.  The Radius server is Server 2008 SP2
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

Craig BeckCommented:
Have you added the APs in NPS as RADIUS clients?
fxr1216Author Commented:
Craig BeckCommented:
Ok just checking :-)

Can you post the NPS custom logs for a failed attempt please?
Determine the Perfect Price for Your IT Services

Do you wonder if your IT business is truly profitable or if you should raise your prices? Learn how to calculate your overhead burden with our free interactive tool and use it to determine the right price for your IT services. Download your free eBook now!

fxr1216Author Commented:
It never makes it as far as the NPS logs.  There are no failed attempts logged.  Our connections requests are pushed via our Palo Alto firewall/network access server.  Trying to understand more about it, and if it's the failing point.
Craig BeckCommented:
So can you confirm that the APs can talk to the NPS via the PA firewall?
fxr1216Author Commented:
Yes, they can.  The PA links ad usernames and IP addresses for filtering.  The access points seem to crash when the Radius request comes in.  On the phone with Xirrus, who might have been able to replicate the problem.
fxr1216Author Commented:
It looks like the Xirrus APs need a factory reset to overcome the problems.  Standard resets have not accomplished anything.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
fxr1216Author Commented:
Does not result in an understanding of the cause of an error, but resolves its effects.

I do not think you have to reset the ap's.
Go to profile and select the profile.
Push now on  the button "sync arrays".
If this not help login in one of the ap's and go to "system tools"
Now you have the option to test the connection with the NPS server.
Select the option "radius ping"
choose your radius server en push the button "excute"
If this works fine you know your radius connection works, if not you know where to look
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today

From novice to tech pro — start learning today.