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AP C9115AXI-A does not want to join a WLC C9800-L-F-K9

BPHY11
Beginner
Beginner

Hi guys!

I have an AP model C9115AXI-A and I want to join it to a WLC C9800-L-F-K9, but it cannot be registered.
I have already pinged from the WLC to the AP and vice versa, at the time of doing so, I get a response in both ways, I have exhausted all my possible responses. Does anyone have an idea what is happening?
I would appreciate it very much.

1 Accepted Solution

Accepted Solutions

BPHY11
Beginner
Beginner

Hi guys!

The problem with the WLC was solved.
It turns out that the interface for Wireless management was not configured for the WLC segment vlan, which is the management vlan defined for the 9800-L.
To make this change, we follow the following steps:
Configuration > Interface > Wireless > + Add > Add management vlan > WLC IP

View solution in original post

18 Replies 18

Flavio Miranda
VIP Mentor VIP Mentor
VIP Mentor

Hi

 There are a few steps on the WLC you need while joinning APs.  Recommend you this guide. If you followed alteady and did not succeed try to share more information on the WLC side.

https://www.cisco.com/c/en/us/support/docs/wireless/catalyst-9800-series-wireless-controllers/213911-understand-catalyst-9800-wireless-contro.html#anc34 

BPHY11
Beginner
Beginner

Hi!

Yes, I already followed the corresponding steps in a CISCO guide and it still doesn't want to register the AP.

Greetings.

Scott Fella
Hall of Fame Guru Hall of Fame Guru
Hall of Fame Guru

Take a look at the console output from the ap.  that should show you why the ap is not joining.

-Scott
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Hi, 

I did, but it doesn't show anything unusual

Attach the output to a text file so we can see it.  Make sure you capture about 5 minutes from when the ap is rebooted.

-Scott
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Sure, only that at the moment I am not on site, since the client called us again until Friday

Haydn Andrews
VIP Engager VIP Engager
VIP Engager

What version are you running on the 9800

There could be potential you are hitting this issue:

https://www.cisco.com/c/en/us/support/docs/field-notices/639/fn63942.html 

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The version that the WLC has is 17.03.04! 

Console into the ap, reboot the ap and capture the output.

-Scott
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