After a library WLAN profile change, Probe Responses for the public SSID lack the expected RSN information element. What is the most useful first split for the CWNE analyst?
Select an answer to reveal the explanation.
Short Explanation
If the Probe Response forgot its security badge, check whether the AP profile actually applied before you blame drywall. Missing RSN usually means config drift or a misapplied WLAN profile, not a mysterious RF eraser. Turning up rates or waving antennas won’t invent an IE that isn’t configured.
Full Explanation
Beacon and Probe Response contents are the authoritative advertisement of BSS security and capability. Absence of an expected RSN IE strongly suggests the intended WLAN profile was not applied or is misconfigured, so configuration validation precedes RF remediation. Management frames do carry security IEs when RSN is enabled; rate or antenna changes do not restore missing profile elements.