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The user receives No EAP-Authentication response for Station [address] errors, warnings, and log messages

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Core Issue

This error is typically caused by a failure at some level in the communication between the AP and the authentication server.

Resolution

Verify that you can ping from the Access Point (AP) to the server. For more information, refer to the Performing Pings and Link Tests section of Cisco Aironet 1200 Series Network Management.

Check the network to make sure that traffic between the two devices is not blocked by any intervening firewall or traffic filters.

If there is good IP connectivity, reset the shared keys (shared secrets) on the AP and the server to ensure they match.

Note:  You may receive the No EAP-Authentication response for Station error message when trying to use Lightweight Extensible Authentication Protocol (LEAP) Proxy on any Cisco Secure ACS for Windows other than version 3.1.

Problem Type

Client / Device cannot authenticate

Error message

Products

Access point

Bridge

Security Options

EAP

LEAP / RADIUS

PEAP

Topology

Wireless client to AP

VxWorks Errors, Warnings, Statistics and Log Messages

No EAP-Authentication response for Station

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