Device does not receive ip when flexconnect

[CCC3]

wlc is 5508
I connected the ap with a flexconnect

When the ap equipment band and the user band are the same
Can't get ip from dhcp server.

However, I changed the user band and made it different from the equipment band, and I confirmed that I was receiving the ip.

I think there will be a problem with the setting of wlc

Is there anyone who knows well?

[marce1000]

  - Have a checkup of the 5508 wireless controller configuration using :
             WirelessAnalyzer input (procedure) for AireOs controllers
    and feed the output from that Wireless Config Analyzer

    Also use the latest/last available software version for it as per :https://www.cisco.com/c/en/us/support/docs/wireless/wireless-lan-controller-software/200046-tac-recommended-aireos.html

                                            8.5.182.12 (8.5.182.13 for 3504s)

  M.