We detected most of our AP with Flagged status. This status happened randomly with random APs. The Flagged type is AP health high connection failure flag. Code 330. Do anyone has any idea why this issue can occurred and how to solve it.
I find it interesting to share the AP / WLC GUI status print.
However, generally these flags are related to overhead, it is necessary to change the channel if the environment is dense, inserting static channels of 2.4GHz, and limiting the 5GHz to 40MHz. Change the RF configuration to beamform, and change the study period of frequencies / neighboard / interference to 1h (3600 s); Also check the load / user balance, and if you prefer, reduce the power of the AP to 1/3.