AP1852 Cannot join WLC (AP1852 )

Yordi Mahieu — Mon, 05 Jul 2021 11:53:59 GMT

I have 6 brand new AP1852 ( all in LAP mode )

1 AP changed to Mobility express (WLC ) --> ap-type mobility-express tftp://<ip-tftp-server>/AIR-AP1850-K9-8.2.100.0.tar (newest firmware)

This WLC (and AP ) is ok .. set basic parameters (Web interface very very poor !!!! ) use CLi for SNMP V3, RADIUS , ...

this WLC user ntp server and time zone (Amsterdam, Berlin, Rome, Vienna ) GMT +1:00 ) and summer time.

The AP one this WLC controller is working fine.

Then I tryed to add a new AP (LAP ) same device , software = 8.1.131.0 .

Device will discover WLC (CAPWAP broadcast ) ... but it wil not dowload (or compleet) image ..

only thing that i can notis = the time diverence ... AP = GMT exaple 09:24:23 and WLC = Timezone corected (and local time) 11:24:23 ..

This is a smart log of the discovery of the WLC ... I have DHCP option to set the Time zone (works great for Cisco switches) but these AP and WLC will not use it ... )

Discovery Request sent to 255.255.255.255 with discovery type set to
[*04/13/2016 08:48:06.3999] CAPWAP State: Init.
[*04/13/2016 08:48:06.3999]
[*04/13/2016 08:48:06.3999] CAPWAP State: Discovery.
[*04/13/2016 08:48:06.3999]
[*04/13/2016 08:48:07.3996] Discovery Response from 10.12.0.11

******I think here AP uses his own NTP server (cisco) to corect the time, only wrong time zone ! *******

[*04/13/2016 09:06:35.0399] device capwap0 entered promiscuous mode
[*04/13/2016 09:06:35.0799] device capwap1 entered promiscuous mode
[*04/13/2016 09:06:43.4674] Selected MWAR 'apc-11' 10.12.0.11 (index 0).
[*04/13/2016 09:06:43.4674] Ap mgr count=1
[*04/13/2016 09:06:43.4674] Go join a capwap controller.
[*04/13/2016 09:06:43.4674] Choosing AP Mgr with index 0, IP = 10.12.0.11, load = 1..
[*04/13/2016 09:06:43.4674] Synchronizing time with AC time: 1460538395
[*04/13/2016 09:06:35.0000] CAPWAP State: DTLS Setup.
[*04/13/2016 09:06:35.0000]
[*04/13/2016 09:06:35.0599] Dtls Session Established with the AC 10.12.0.11, port= 5246
[*04/13/2016 09:06:35.0599] CAPWAP State: Join.
[*04/13/2016 09:06:35.0599]
[*04/13/2016 09:06:35.0699] PATH_MTU_PAYLOAD: encodelen = 273
[*04/13/2016 09:06:35.0699] PATH_MTU_PAYLOAD: slotId = 0
[*04/13/2016 09:06:35.0699] PATH_MTU_PAYLOAD: slotId = 0 pktlen 1485 capwap_size 1360 met->encode
[*04/13/2016 09:06:35.0699] PATH_MTU_PAYLOAD: slotId = 0 len 1485(1071)
[*04/13/2016 09:06:35.0699] Sending Join Request Path MTU payload, Length 1360
[*04/13/2016 09:06:35.0699]
[*04/13/2016 09:06:35.0899] Join Response from 10.12.0.11
[*04/13/2016 09:06:35.0899] AC accepted join request with result code: 0
[*04/13/2016 09:06:35.0899]
[*04/13/2016 09:06:35.0899] PMTU : Setting MTU to : 1485
[*04/13/2016 09:06:35.0899]
[*04/13/2016 09:06:35.0899] Starting Post Join timer
[*04/13/2016 09:06:35.0899] CAPWAP State: Image Data.
[*04/13/2016 09:06:35.0899]

***** AP see new firmware on the WLC ******************
[*04/13/2016 09:06:35.0899] AP current image version 8.1.131.0
[*04/13/2016 09:06:35.0899] Controller current image version 8.2.100.0
[*04/13/2016 09:06:35.0899] Version does not match.
[*04/13/2016 09:06:35.0899] AP backup image version 0.0.0.0
[*04/13/2016 09:06:35.1199] do PRECHECK, part1 is active part
[*04/13/2016 09:06:35.1399] Stopping Post Join Timer and Starting HeartBeat Timer
[*04/13/2016 09:06:35.1399] Image Data Request sent to 10.12.0.11
[*04/13/2016 09:06:35.1399] Image Data Response from 10.12.0.11
[*04/13/2016 09:06:35.1399]
[*04/13/2016 09:06:35.1399] AC accepted join request with result code: 0
[*04/13/2016 09:06:35.1399]
[*04/13/2016 09:06:35.1399] Starting image download.............
[*04/13/2016 09:08:29.0444] Invalid event 50 & state 10 combination.
[*04/13/2016 09:08:29.0444] SM handler: Failed to process timer message. Event 50, state 10
[*04/13/2016 09:08:29.0444] Failed to handle timer message.
[*04/13/2016 09:09:23.6873] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:09:23.7073] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:12:23.6910] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:12:23.7110] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:15:23.6948] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:15:23.7148] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:18:23.6885] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:18:23.7085] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:21:23.6923] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:21:23.7223] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:24:23.6960] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:24:23.7160] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:27:23.6898] Discarding msg type 9 in CAPWAP state: 10.
[*04/13/2016 09:27:23.7098] Discarding msg type 9 in CAPWAP state: 10.

***** AP stays like this ....******

The 2 devices are connected to the same POE+ Cisco Switch, same untaged Vlan, no firewall or ACL precent ....

I could upgrade this AP to Mobility expres like the 1ste one, but i would preffer the have a ZERO TOUCH AP deployment !!!!

Please paste the output of

Sandeep Choudhary — Thu, 14 Apr 2016 06:04:23 GMT

Please paste the output of these commands..

from WLC: sh sysinfo

From AP: sh version

Regards

Dont forget to rate helpful posts

After searching i have found

Yordi Mahieu — Thu, 14 Apr 2016 09:13:45 GMT

After searching i have found that the image must be in a folder on a tftp server ... it is not downloading it from the controller,

after making the image available the software update wenth smooth..

thanks for the replay ..

I am a similar issue, I had

D. STM — Mon, 18 Apr 2016 01:34:16 GMT

I am a similar issue, I had converted my 1852AP to a CME, and didn't care for the limited interface compared to the 2504 controller, I ended up picking up a controller, the information to demote said to login, which I did get to enable mode which I did and set the NAME#ap-type capwap, so when it rebooted it started to look at the 2504 which is set as a master for an image, which the instructions said if the image is different it will pull an image from the new controller, then I would see it show up in the 2504 under my AP's, and downloading, normally when I first provision they take a while, but this would show.. the a1852i was different than the 2540, while this eventually load?

That was an error with the

roagutierrez — Thu, 13 Oct 2016 02:48:02 GMT

That was an error with the version of firmware, i could fix it that way:

The same version in ME and AP

I upgrade the AP with this command:

archive download-sw /reload tftp://<<ip_tftp_server>>/<<image>>.tar

now it works just fine

Cheers

Thanks all for this helpful

azahran2013 — Wed, 16 Aug 2017 11:24:25 GMT

Thanks all for this helpful replies, i have the same issue of one 1850 master running higher version than the subordinate 1850 access points and i fix it by follow the following URL:

https://www.cisco.com/c/en/us/td/docs/wireless/controller/technotes/8-2/b_Mobility_Express_Deployment_guide/b_Mobility_Express_Deployment_guide_chapter_01010.html