Cisco Secure ACS problem

Unanswered Question
Feb 13th, 2007

We have Cisco Secure ACS 4.0 which authenticates wireless users with certificate. Sometimes I get a message in failed attempts:

02/13/2007 14:22:38 Authen failed EAP-TLS or PEAP authentication failed during SSL handshake

02/13/2007 14:22:17 Authen failed EAP-TLS or PEAP authentication failed during SSL handshake .. ..

After few retries user can authenticate normaly without any change. If I check the ACSauth log i see for the same timeing:

AUTH 02/13/2007 14:21:55 A 5082 2644 Worker 4 waiting for work

AUTH 02/13/2007 14:21:56 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: error decrypting non fragmented data.

AUTH 02/13/2007 14:21:56 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: SSL send alert fatal:unexpected_message

AUTH 02/13/2007 14:22:04 E 5103 2616 AllocateThread returned 0

AUTH 02/13/2007 14:22:04 A 5086 2628 Worker 0 established conn 67109 with 127.0.0.1:8515

AUTH 02/13/2007 14:22:04 E 5103 2616 AllocateThread returned 2

AUTH 02/13/2007 14:22:04 A 5086 2636 Worker 2 established conn 67110 with 127.0.0.1:8518

AUTH 02/13/2007 14:22:04 E 5103 2616 AllocateThread returned 4

AUTH 02/13/2007 14:22:04 A 5086 2644 Worker 4 established conn 67111 with 127.0.0.1:8526

AUTH 02/13/2007 14:22:04 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: error decrypting non fragmented data.

AUTH 02/13/2007 14:22:04 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: SSL send alert fatal:unexpected_message

AUTH 02/13/2007 14:22:07 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: error decrypting non fragmented data.

AUTH 02/13/2007 14:22:07 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: SSL send alert fatal:unexpected_message

AUTH 02/13/2007 14:22:10 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: error decrypting non fragmented data.

AUTH 02/13/2007 14:22:10 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: SSL send alert fatal:unexpected_message

AUTH 02/13/2007 14:22:17 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: error decrypting non fragmented data.

AUTH 02/13/2007 14:22:17 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: SSL send alert fatal:unexpected_message

AUTH 02/13/2007 14:22:38 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: error decrypting non fragmented data.

AUTH 02/13/2007 14:22:38 E 0361 2652 EAP: PEAP: getEapMsgFromPeapTunnelFrag: SSL send alert fatal:unexpected_message

AUTH 02/13/2007 14:23:04 A 5096 2640 Worker 3 error/timeout, forcing API disconnect of connection 67105.

AUTH 02/13/2007 14:23:04 A 5097 2640 Worker 3 closing conn 67105 endpoint. Handled 6 messages.

AUTH 02/13/2007 14:23:04 A 5096 2636 Worker 2 error/timeout, forcing API disconnect of connection 67110.

AUTH 02/13/2007 14:23:04 A 5082 2640 Worker 3 waiting for work

AUTH 02/13/2007 14:23:04 A 5097 2636 Worker 2 closing conn 67110 endpoint. Handled 4 messages.

AUTH 02/13/2007 14:23:04 A 5082 2636 Worker 2 waiting for work

AUTH 02/13/2007 14:23:04 A 5096 2628 Worker 0 error/timeout, forcing API disconnect of connection 67109.

AUTH 02/13/2007 14:23:04 A 5097 2628 Worker 0 closing conn 67109 endpoint. Handled 12 messages.

AUTH 02/13/2007 14:23:04 A 5082 2628 Worker 0 waiting for work

AUTH 02/13/2007 14:23:04 A 5096 2644 Worker 4 error/timeout, forcing API disconnect of connection 67111.

Can anyone explain what could be the problem here?

thanx in advance

best regards,

Gregor

I have this problem too.
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