Question

Windows 2008 R2 NPS with Cisco WLC 5500 Error Message

Asked by: CulverIT

We have recently install 4 Cisco 5500 Series WLC's.  We are trying to setup Windows 2008R2 NPS for radius authentication.  In the servers event logs we are constanly recieving this message "A RADIUS message was received from RADIUS client 10.201.1.231 with an invalid authenticator. This is typically caused by mismatched shared secrets. Verify the configuration of the shared secret for the RADIUS client in the Network Policy Server snap-in and the configuration of the network access server."  I have verified that the shared secrets are the same on the NPS server and the radius clients.  Any thoughts?

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Asked On
2009-09-18 at 09:58:19ID24743898
Tags

Event ID 14

,

NPS

,

Cisco 5500

,

WLC

Topics

Wireless Technologies

,

Network Security

,

Windows Networking

Participating Experts
2
Points
0
Comments
4

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Answers

 

by: ikalmarPosted on 2009-09-18 at 10:53:38ID: 25368276

did you upgraded the WLCs before?

 

by: CulverITPosted on 2009-09-18 at 10:55:19ID: 25368292

This is a new install.

 

by: merowingerPosted on 2009-09-22 at 13:12:54ID: 25397074

ok had the same problem! Two possible problems :)

1. Enable, or disable the "Message Authenticator" option in the settings of your defined radius client on your NPS Server
2. Do you have enabled the NPS Server as wireless access server? I ask because i recently configured the NPS as i configured it with IAS Server but there are main .

Check out this: http://blogofanitadmin.blogspot.com/2008/12/radius-server-with-wpa2-in-2008.html

 

by: CulverITPosted on 2009-09-28 at 07:55:00ID: 25439870

I had already tried this, with no resolve.  Issue ended up being that I need to add PEAP to Authenticated Methods.  Thanks for all of the reponses.

20120131-EE-VQP-002

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