WLC only connects to MACs, Androids, but not to Windows PCs since today

[markusstrobl]

Since today we have a curious "feature":

Only MAC and Android clients are able to connect to the WLAN, locked by WPA2-enterprise/Radius (Windows domain server with NAS). Windows clients are denied.

Does anyone have the same epxeriences?

Markus

[Scott Fella]

Not really.... can you provide more info... What WLC, code, AP's, local mode or h-reap, anything change like disabling broadcast on the wlan or anything?

Thanks,

Scott

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[markusstrobl]

I found the solution after sveral hours of searching in google and the log-files of the NPS:

http://support.microsoft.com/kb/933430/en-us

Our NPS-Server contains to many entries in the trusted root certification list!!!

I tried to delete several certificates, but as you can see in http://support.microsoft.com/kb/293781 this can be very critical, since I don#t know, which certificates are needed for the system

So I used Method #3 in http://support.microsoft.com/kb/933430/en-us afterwards and now it seems, that all clients can connect again.

Markus