No valid AP manager found

cihanogeturk — Mon, 26 Jul 2021 03:19:27 GMT

Hello All,

I have more than 150+ AP in my corporate network and when I tried to add a new one, it gives me this error during the discovery.

AP Model: AIR-AP2802E-Z-K9

AP Running Image : 8.3.143.0

[*07/26/2021 03:00:07.7717] CAPWAP State: Discovery
[*07/26/2021 03:00:07.7721] Got WLC address 10.0.205.100 from DHCP.
[*07/26/2021 03:00:07.8009] DNS resolved CISCO-CAPWAP-CONTROLLER.gwf.com.au
[*07/26/2021 03:00:07.8009] DNS discover IP addr: 10.0.205.100
[*07/26/2021 03:00:07.8020] Discovery Request sent to 10.0.205.100, discovery type DHCP(2)
[*07/26/2021 03:00:07.8029] Discovery Request sent to 10.0.205.100, discovery type DNS(3)
[*07/26/2021 03:00:07.8037] Discovery Request sent to 255.255.255.255, discovery type UNKNOWN(0)
[*07/26/2021 03:00:07.8372] Discovery Response from 10.0.205.100
[*07/26/2021 03:00:18.0044] Discovery Response from 10.0.205.100
[*07/26/2021 03:00:18.0000]
[*07/26/2021 03:00:18.0000] CAPWAP State: DTLS Setup
[*07/26/2021 03:01:15.0161] dtls_disconnect: ERROR shutting down dtls connection ...
[*07/26/2021 03:01:15.0161]
[*07/26/2021 03:01:15.0163]
[*07/26/2021 03:01:15.0163] CAPWAP State: DTLS Teardown
[*07/26/2021 03:01:19.7678] No more AP manager addresses remain..
[*07/26/2021 03:01:19.7678] No valid AP manager found for controller 'DCAWLC002' (ip: 10.0.205.100)
[*07/26/2021 03:01:19.7678] Failed to join controller DCAWLC002.
[*07/26/2021 03:01:19.7678] Failed to join controller.
[*07/26/2021 03:00:18.0000]

I checked Controller and AP. Couldnt find culprit.

Here is the details.

Controller:

Manufacturer's Name.............................. Cisco Systems Inc.
Product Name..................................... Cisco Controller
Product Version.................................. 8.5.151.0
RTOS Version..................................... 8.5.151.0

Auth Config:

Authorize MIC APs against Auth-list or AAA ...... disabled
Authorize LSC APs against Auth-List ............. disabled
APs Allowed to Join
AP with Manufacturing Installed Certificate.... yes
AP with Self-Signed Certificate................ yes
AP with Locally Significant Certificate........ no

Certificate:

Certificate Name: Cisco SHA1 device cert

Subject Name :
C=US, ST=California, L=San Jose, O=Cisco Systems, CN=AIR-CT5520-K9-00 , emailAddress=support@cisco.com
Issuer Name :
O=Cisco Systems, CN=Cisco Manufacturing CA
Serial Number (Hex):
<No need to be publish>
Validity :Start : Sep 18 20:36:39 2018 GMT
End : May 14 20:25:42 2029 GMT

Time:

time............................................. Mon Jul 26 13:11:25 2021

I tried

Resetting AP
Resetting Capwap (capwap ap erase all)
Manual enter time
Add AP Mac into Auth List

Can someone give me an advice for the right direction please?

Thank you in advance

Re: No valid AP manager found

Rasika Nayanajith — Mon, 26 Jul 2021 03:27:26 GMT

Did you try the Clear AP configuration using the below command?

AP#capwap ap erase

https://www.cisco.com/c/en/us/support/docs/wireless/aironet-1200-series/99763-reset-lwappconfig-lap.html#anc10

HTH

Rasika

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Re: No valid AP manager found

cihanogeturk — Mon, 26 Jul 2021 22:53:16 GMT

Hi Rasika,

yes I did it and said on the post.

I tried

Resetting AP
Resetting Capwap (capwap ap erase all)
Manual enter time
Add AP Mac into Auth List

Can someone give me an advice for the right direction please?

Re: No valid AP manager found

CarlosdeAssuncao — Wed, 11 Aug 2021 22:56:09 GMT

Hi,

Check licenses if not already.

Try upgrade the AP directly to ME and the put it back on Lightweight in the same version of the WLC.

It worked for me with 1852 and 2504wlc

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No valid AP manager found

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Re: No valid AP manager found