topic Re: Problem with AP 2802 fail to join WLC in Wireless

Problem with AP 2802 fail to join WLC

cripy192 — Tue, 08 Nov 2022 22:22:54 GMT

hello I have a problem.
I try to join an ap 2802 to a wlc 5520 but I can't do it I get the following error in AP

IN AP 2802:

show capwap ip config
IP Address : 192.168.240.234
IP netmask : 255.255.255.0
Default Gateway : 192.168.240.3

Primary controller IP : 192.168.240.3

Primary Boot Image : 17.6.1.13
Backup Boot Image : 17.8.0.144

--------------------------------------------

in WLC:

Version: 8.2.170.0

IP: 192.168.240.3

Re: Problem with AP 2802 fail to join WLC

Leo Laohoo — Tue, 08 Nov 2022 22:50:02 GMT

On the WLC, post the complete output to the following commands:

sh sysinfo
sh time

NOTE: Do not post screenshots.

Re: Problem with AP 2802 fail to join WLC

cripy192 — Tue, 08 Nov 2022 22:56:04 GMT

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.2.170.0
Bootloader Version............................... 1.0.20
Field Recovery Image Version..................... 7.6.101.1
Firmware Version................................. FPGA 1.7, Env 1.8, USB console 1.27
Build Type....................................... DATA + WPS

System Name...................................... WLCNEW
System Location..................................
System Contact...................................
System ObjectID.................................. 1.3.6.1.4.1.9.1.1069
Redundancy Mode.................................. Disabled
IP Address....................................... 192.168.240.3
IPv6 Address..................................... ::
Last Reset....................................... Power on reset
System Up Time................................... 315 days 10 hrs 57 mins 31 sec s
System Timezone Location......................... (GMT -5:00) Eastern Time (US a nd Canada)
System Stats Realtime Interval................... 5
System Stats Normal Interval..................... 180

--------------------------------

show time

Time............................................. Thu Jan 7 18:11:39 2021

Timezone delta................................... 0:0
Timezone location................................ (GMT -5:00) Eastern Time (US and Canada)

NTP Servers
NTP Polling Interval......................... 600

Index NTP Key Index NTP Server Status NTP Msg Auth Status
------- ----------------------------------------------------------------------------------------------

Re: Problem with AP 2802 fail to join WLC

Leo Laohoo — Wed, 09 Nov 2022 00:19:34 GMT

Look at the time and date of the logs from the AP. They are wrong.

The controller has no NTP settings and the time-and-date of the WLC is also wrong.

Set up the correct time-and-date or enable NTP and the AP should start to join.

Re: Problem with AP 2802 fail to join WLC

Kasun Bandara — Wed, 09 Nov 2022 02:34:05 GMT

Make sure time and date of WLC is correct

Re: Problem with AP 2802 fail to join WLC

Arshad Safrulla — Wed, 09 Nov 2022 10:17:41 GMT

APs that are upgraded to Release 17.6.x cannot join controllers that are running AireOS versions earlier than 8.10.162.0, 8.5MR8, or 8.5.176.2(IRCM).

https://www.cisco.com/c/en/us/td/docs/wireless/controller/9800/17-6/release-notes/rn-17-6-9800.html#:~:text=Warning-,APs,-that%20are%20upgraded

You need to manually downgrade the AP via tftp by connecting a console if SSH access is not available. Check the compatibility matrix and download the correct code for your AP and then downgrade it manually.

archive download-sw /reload tftp://<TFTP_IP_ADDRESS>/<FILENAME.TAR>"