Symptom
Intermittently, and for no apparent reason, associated clients are deauthenticated
by an access point, with reason code 7, "Class 3 frame received from nonassociated
STA" (as seen in an over-the-air packet capture.)
Conditions
Seen on a 2800/3800/4800/1560 AP - not with any other model.
Infrastructure MFP is enabled.
Workaround
Disable infrastructure MFP.
