Technical Note: Intermittent Login Authentication Issues and Invalid EAPOL-key Controller Log Messages

[FortiKoala]

Description

Intermittent Login Authentication Issues and Invalid EAPOL-key Controller Log Messages

Solution

Issue:  Under circumstances where wireless users loose internet connection and reset the wireless adapter to restore the connection, wireless authentication fails.  The Cisco WISM logs display message "Received invalid EAPOL-key M2 msg in START." 

Solution: On the wireless controller (not Network Sentry), increase the EAPOL timout setting to 5000ms.