Access point will not join WLC right away

[IvanBondarev1174]

My Air-cap1702i access point will not join WLC right away after upgrade firmware from 153-3.JA3 to 153-3.JI5

WLC AIR-CT2504-K9 Software Version 8.0.115.0

Reason For Last Unsuccessful "Attempt Join message decode wtp ipv4 address Failed"

Log from AP

*Aug 30 05:48:47.971: %CAPWAP-5-DHCP_OPTION_43: Controller address 10.X.X.X obtained through DHCP
*Aug 30 05:48:47.971: %CAPWAP-5-DHCP_OPTION_43: Controller address 10.X.X.X obtained through DHCP
*Aug 30 05:48:57.971: AP has SHA2 MIC certificate - Using SHA2 MIC certificate for DTLS.
*Aug 30 05:48:58.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:48:58.463: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:48:58.463: %CAPWAP-5-SENDJOIN: sending Join Request to 10.X.X.X
*Aug 30 05:48:58.467: %DTLS-5-ALERT: Received WARNING : Close notify alert from 10.X.X.X
*Aug 30 05:48:58.467: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 10.X.X.X:5246
*Aug 30 05:49:08.467: AP has SHA2 MIC certificate - Using SHA2 MIC certificate for DTLS.
*Aug 30 05:49:09.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:49:09.463: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:49:09.463: %CAPWAP-5-SENDJOIN: sending Join Request to 10.X.X.X
*Aug 30 05:49:09.463: %DTLS-5-ALERT: Received WARNING : Close notify alert from 10.X.X.X
*Aug 30 05:49:09.463: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 10.X.X.X:5246
*Aug 30 05:49:19.467: AP has SHA2 MIC certificate - Using SHA2 MIC certificate for DTLS.
*Aug 30 05:49:19.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:49:19.463: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:49:19.463: %CAPWAP-5-SENDJOIN: sending Join Request to 10.X.X.X
*Aug 30 05:49:19.467: %DTLS-5-ALERT: Received WARNING : Close notify alert from 10.X.X.X
*Aug 30 05:49:19.467: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 10.X.X.X:5246
*Aug 30 05:49:29.467: AP has SHA2 MIC certificate - Using SHA2 MIC certificate for DTLS.
*Aug 30 05:49:30.000: %CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:49:30.463: %CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 10.X.X.X peer_port: 5246
*Aug 30 05:49:30.463: %CAPWAP-5-SENDJOIN: sending Join Request to 10.X.X.X
*Aug 30 05:49:30.463: %DTLS-5-ALERT: Received WARNING : Close notify alert from 10.X.X.X
*Aug 30 05:49:30.463: %DTLS-5-SEND_ALERT: Send FATAL : Close notify Alert to 10.X.X.X:5246
Not in Bound state.
*Aug 30 05:49:35.967: %CAPWAP-3-DHCP_RENEW: Could not discover WLC. Either IP address is not assigned or assigned IP is wrong. Renewing DHCP IP.
*Aug 30 05:49:39.039: %DHCP-6-ADDRESS_ASSIGN: Interface BVI1 assigned DHCP address 10.X.X.X, mask 255.255.255.240, hostname irk-t-ap01

[Sandeep Choudhary · Accepted solution]

why did you upgrade the AP software to 153-3.JI5 ? This sofwtare is required when you have 8.8.125.0 version on WLC (which you dont have)

Downgrade the AP to : 15.3(3)JA1 (Equivalent to 8.0.115.0 on WLC)

Regards

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[patoberli]

Lightweight APs always take the software release from the WLC, or are you talking about an Autonomous one?
If you want to upgrade the software of the AP, upgrade the WLC.