WLC 5508 - Ignoring Primary discovery request received on non-management interface (2) from AP

[Paul Zon]

Hello,

Im receving this error on my syslog server:

capwap_ac_sm.c:1443 Ignoring Primary discovery request received on non-management interface (2) from AP
already checked the configuration and everything seems ok. They are registered and with clients associated.

What could be the cause?

Thanks in advance,

Chris

[Scott Fella]

Are you using LAG or not?  Could be an etherchannel issue... etherchannel load balance needs to be src-dst-ip.  If you are not using LAG, make sure you only allow the vlans specific for the interface.  Your not using seperate AP Managers are you?

Thanks,

Scott

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[Paul Zon]

Thanks Scott for your fast response.

No, I'm not using LAG.
What do you mean with separate AP Managers?

I have one AP Manager on vlan 100 (10.100.0.25) and the Management interface on the same Vlan (10.100.0.26)

And users use vlan 150 (10.150.0.x).

The switch port where the AP is plugged is configured with:
interface GigabitEthernet2/0/20

switchport access vlan 100

switchport mode access

spanning-tree portfast

On WLC I can also check the AP history:

Last Error Occurred Reason            Layer 3 discovery request not received on management interface