Few Access point not joining WLC getting few error in flexconnect mode Layer 3 discovery request not received on management VLAN

[anilaccentiaccna]

Hi all,

I am facing some issue with few Access Point . I am getting "Layer 3 discovery request not received on management VLAN" error in the AP join stats.These access point are running in flexconnect mode and located at remote location .  I am only facing issue with four and five access point others are working fine. Please help how can I fix this.

[Flavio Miranda]

Hi

  Is WLC able to ping the AP and vice-versa?  

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[anilaccentiaccna]

yes I can ping from switch where AP is connected and also from WLC to AP.

[Flavio Miranda]

Which is the WLC version and the AP model? 

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[Saravanan Lakshmanan]

//It appears, AP trying to send discovery to WLC through one of WLC's dynamic interface.

//what's the AP trying WLC ip to join --> Is it WLC's mgmt ip or One of its dynamic interface ip configured in WLC.

//If AP trying to join the WLC via Dynamic interface ip then on that dynamic interface make sure to enable - "Enable Dynamic AP Management" to activate AP-Management on the dynamic interface, however, it requires AP to have access to both mgmt and dynamic interface OR Make sure AP trying to join via management ip.