Client monitor before making the change looked like this: Lots of cycles of Discover from the client and repeated Offers from the server, but never a Request from the client:01/24/2019 10:28:06 AM 9801A7C4EED7 0019771A17E9 FES-11-320 INFO (3486)sta...
We are also experiencing this issue where client not getting IP address via DHCP (esp. on AP320) and it resolved when we replaced the 5GHz radio profile with a fresh one that allowed us to disable DFS.
