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APs are failing to download an image file from the WLC. The AP joins the WLC and is put in the downloading state. After sending just one Image Data Response, the WLC concludes the software transfer. AP is then caught in a loop in which it joins the WLC, requests the image, and fails in the transfer.
New APs joining the WLC. Downloads previously worked on the WLC.
Reboot the WLC or preload the software version on the AP
AP debugs (debug capwap client event, debug capwap client error): *Mar 21 19:12:05.013: %CAPWAP-5-SENDJOIN: sending Join Request to 10.100.22.50 *Mar 21 19:12:05.027: %CAPWAP-3-EVENTLOG: Join Response from 10.100.22.50 *Mar 21 19:12:05.035: %CAPWAP-3-EVENTLOG: Starting Post Join timerperform archive download capwap:/c1140 tar file *Mar 21 19:12:05.036: %CAPWAP-3-EVENTLOG: CAPWAP State: Image Data. *Mar 21 19:12:05.036: %CAPWAP-6-AP_IMG_DWNLD: Required image not found on AP. Downloading image from Controller. *Mar 21 19:12:05.040: %CAPWAP-3-EVENTLOG: Sending packet to AC *Mar 21 19:12:05.041: Loading file /c1140... *Mar 21 19:12:05.049: capwap_image_proc: problem extracting tar file *Mar 21 19:12:06.884: %DTLS-3-BAD_RECORD: Erroneous record received from 10.100.22.50: Duplicate (replayed) record *Mar 21 19:12:35.040: %CAPWAP-3-EVENTLOG: Echo Interval Expired. WLC debugs (debug mac addr , debug capwap events enable, debug capwap errors enable): *spamApTask2: Mar 21 15:12:15.495: [PA] c8:9c:1d:53:60:77 Join Request from 10.100.14.66:13832 *spamApTask2: Mar 21 15:12:15.496: [PA] c8:9c:1d:53:60:77 AP with same name APc89c.1d53.6077 exist. Using default name APc89c.1d53.6077 for this AP. *spamApTask2: Mar 21 15:12:15.496: [PA] c8:9c:1d:53:60:77 Join Version: = 117464597 *spamApTask2: Mar 21 15:12:15.497: [PA] c8:9c:1d:53:60:77 Join resp: CAPWAP Maximum Msg element len = 92 *spamApTask2: Mar 21 15:12:15.497: [PA] c8:9c:1d:53:60:77 Join Response sent to 10.100.14.66:13832 *spamApTask2: Mar 21 15:12:15.497: [PA] c8:9c:1d:53:60:77 CAPWAP State: Join *spamApTask2: Mar 21 15:12:15.497: [PA] c8:9c:1d:53:60:77 capwap_ac_platform.c:1547 - Operation State 0 ===> 4 *spamApTask2: Mar 21 15:12:15.524: [PA] c8:9c:1d:53:60:77 Image data Request from 10.100.14.66:13832 *spamApTask2: Mar 21 15:12:15.524: [PA] c8:9c:1d:53:60:77 CAPWAP State: Image Data *spamApTask2: Mar 21 15:12:15.524: [PA] c8:9c:1d:53:60:77 capwap_ac_sm.c:5337 - Operation State 4 ===> 5 *spamApTask2: Mar 21 15:12:15.524: [PA] c8:9c:1d:53:60:77 Image Data Request sent to 10:100:14:66:13832 *spamApTask2: Mar 21 15:12:15.526: [PA] c8:9c:1d:53:60:77 Image data Response from 10.100.14.66:13832 *spamApTask2: Mar 21 15:12:15.526: [PA] c8:9c:1d:53:60:77 Image data transfer done *spamApTask2: Mar 21 15:12:17.410: [PA] c8:9c:1d:53:60:77 Echo Timer Expiry: Did not receive heartbeat reply from AP c8:9c:1d:53:60:77 (10:100:14:66/13832)
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