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Radius request to Active Directory Domain Controller running Network Policy Server suddenly stopped working

Radius request to Active Directory Domain Controller running Network Policy Server suddenly stopped working

Mattias_Anderss
New Contributor
We have a V2110 Controller set up to do authentication with RADIUS to our AD server using MSCHAP v2. But it suddenly stopped working.
In the log on the AD server I can see this many times in application log:
Negotiation failed. No available eap methods.
It never appeared before it was working and now it's showing that error a few times every minute.
I tried duplicating the Network Policy, disabling the old one and renaming the new one to the old ones name. But no luck.
Anyone else bump in to this?

10 REPLIES 10

Doug
Extreme Employee
That would do it... Take a look at https://technet.microsoft.com/library/cc771696.aspx for more info and assistance.
Doug Hyde
Director, Technical Support / Extreme Networks

Mattias_Anderss
New Contributor
Ah, when I hit edit on that I just get:
Cannot configure EAP
A certificate could not be found that can be used with this Extensible Authentication Protocol.

Doug
Extreme Employee
Basic PEAP setup without any Filter-ID return...

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Doug Hyde
Director, Technical Support / Extreme Networks

Mattias_Anderss
New Contributor
Yes, it is set to NAS Port Type with the value Wireless - Other OR Wireless - IEEEE 802.11.
GTM-P2G8KFN