Unable to join the WLC after upgrade

[srikanthpoludasu]

Hey guys

We upgraded the WLC 8500 from 8.0.110.9 to 8.4.100.0 & after upgradation most of the flexconnect mode access point(AIR-CAP3602I-N-K9) unable to join the WLC.but local mode access point successfully joined

Can anyone suggest why access point unable to join the WLC.

[Rafael E]

Hi Srikanth,

This is a complete different questions to what has been answered on this forum. I would suggest to open a new thread for proper follow up.

In order to help, more details are needed. Issue is too general as stated.

• what WLC?
• what APs?
• can AP reach WLC  "show ap join stats summary all" & "show ap join stats  detail <ap mac addr>"?
• How AP are able to discover WLC: DNS, Option 43, Broadcast ... ?

Regards,

Rafael