topic Re: No valid AP manager found for controller in Wireless

No valid AP manager found for controller

Jegan Rajappa — Mon, 05 Jul 2021 20:18:10 GMT

Hi, After upgrade Cisco 5520 WLAN controller from 8.5.151.0 to 8.10.151.0, all Cisco 2802 APs couldn't join controller, however Cisco 2702 AP joins.

By looking into AP console, it says 'No valid AP manager found for controller'

It seems AP downloaded 8.10.151.0 code, but couldn't join controller

- Tried to factory reset AP hardware, no luck.

- Management interface has AP manager tick.

- NTP looks good

- Both WLAN controller and AP are in same broadcast domain

Does anyone have any advice?

Re: No valid AP manager found for controller

Sandeep Choudhary — Wed, 12 May 2021 11:58:32 GMT

Can you check:

1. If RTU license is activated or not ?

2. If management IP and service port IP is on the same network or on diff . FYI: it must be on diff network

You can also try this command on one AP CLI : capwap ap erase all

Regards

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Re: No valid AP manager found for controller

Leo Laohoo — Wed, 12 May 2021 12:01:52 GMT

Post the complete output to the following commands:

WLC: sh sysinfo
WLC: sh time
WLC: sh ap join details <AP MAC ADDRESS>
AP: sh ip interface brief
AP: sh version

NOTE: Do not post screenshots. Copy-and-past or log the output to a text file and attach it to the response.

Re: No valid AP manager found for controller

Jegan Rajappa — Wed, 12 May 2021 12:17:58 GMT

Hi Sandeep, RTU is activated and has enough license

Mgmt and service port is in different network

tried capwap ap erase all, no luck, tried factory reset with mode button, no luck

Re: No valid AP manager found for controller

Scott Fella — Wed, 12 May 2021 14:26:33 GMT

The management and service port does not have connectivity between then... correct? Take one of the 2802's and place that on the same vlan as the management interface and factory reset the ap using the mode button. See if the ap joins or not and if you see the same message or a different message.

Re: No valid AP manager found for controller

Jegan Rajappa — Fri, 28 May 2021 08:32:03 GMT

Worked with TAC and got bug ID, it seems there is no fix yet 😐

https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvy37953

Re: No valid AP manager found for controller

Leo Laohoo — Fri, 28 May 2021 09:54:08 GMT

@Jegan Rajappa wrote:

CSCvy37953

Thanks for the Bug ID.

Now for the pressing question: Is this bug present in 8.10MR6?

Re: No valid AP manager found for controller

Jaccobbchoi — Mon, 04 Apr 2022 10:00:32 GMT

May I know if you pointed the gateway of the APs to the HSRP Standby IP address? If yes, can you paste the settings of your management VLAN configuration here?

Re: No valid AP manager found for controller

Jaccobbchoi — Mon, 04 Apr 2022 10:01:26 GMT

Can you paste the management VLAN configuration here if there's HSRP configured?

Re: No valid AP manager found for controller

RxTx — Sun, 20 Jul 2025 08:13:46 GMT

Yes it is present and annoying... on vWLC 8.10.196.0, reboot and clear config AP did not solve it.

Re: No valid AP manager found for controller

Mark Elsen — Sun, 20 Jul 2025 09:18:05 GMT

- @RxTx Not helpful to revive old threads , poster and followers may no longer be involved with the issue ==> start a new thread and describe your problem from scratch.