If Meraki is listening,   I too have this same issue ["client entered wrong password"] when associating with either radio [2.4 & 5] and often failing multiple times. I had originally thought it was related to client roaming between weaker APs or stationary between two similarly transmit powered APs. HOWEVER, I have one of these clients sitting in my office under only one AP and the log still reports the same error from time to time and I'm not even using it! No power saving and no interference of any kind.   Any client settings to change or set would be helpful. Any AP settings to change or set would be helpful.   UPDATE: I turned off the 5 GHz radios on the involved APs. This fixed the problem: no more failed passwords or difficult associations.  ... View more