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Cisco Bug: CSCvi07026 - Wireless clients unable to connect when AP link encryption enabled on IOS APs

Last Modified

Oct 23, 2019

Products (1)

  • Cisco Aironet 3700 Series Access Points

Known Affected Releases

8.3(133.0) 8.3(140.0) 8.5(110.0)

Description (partial)

Wireless clients are unable to connect when the AP link encryption enabled

WLC 5520 running on and AP model 3702. 
AP on Local model and AP link encyrption enabled on the Ap-> advanced settings
Wireless clients are able to see the SSID but unable to connect. The AP DTLS debugs shows the below error continuously. However the AP is registered on the WLC with no issues and the UP time increasing

*Feb  2 05:38:21.899: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to
*Feb  2 05:38:31.899: %CAPWAP-6-DATA_DTLS_START: Starting Data DTLS handshake. Wireless client traffic will be blocked until DTLS tunnel is established.
*Feb  2 05:39:02.691: DTLS_CLIENT_ERROR: ../capwap/base_capwap/dtls/base_capwap_dtls_connection_db.c:2214 Max retransmission count reached for Connection 0xE0BC03C!
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