If a Warning sign is associated with the SSID, a box describing the causes for warning is displayed on the first
page of the
Details
screen. See
, for descriptions of warning conditions.
AP Scan Details Window
AP Scan Measurement Descriptions
Details Measurement Descriptions
for the full list of measurement descriptions.
7.1.5 AP Scan Warning Conditions
If a Warning sign is associated with the SSID, a box describing the causes for warning is displayed on the
first page of the
Details
screen. One or multiple causes could trigger a warning. If multiple causes are present,
they are all listed in the warning box.
AP Scan Details Window Warning Box
Two main causes of warnings are possible:
Threshold warnings
Configuration warnings
Threshold warnings are triggered for the following reasons:
Signal Level warning
: If the Signal Level Threshold is enabled in the Measurement Setup menu and the current
measured signal level is below the green level threshold.
Noise Level warning
: If the Noise Level Threshold is enabled in the Measurement Setup menu and the current measured
noise level is above the green level threshold.
SNR Level warning
: If the Signal to Noise Level Threshold is enabled in the Measurement Setup menu and the current
measured SNR is below the green level threshold.
For more information on enabling/disabling Signal, Noise, and SNR Levels, refer to
Configuration warnings are triggered for the following reasons:
Not recommended channel:
The AP is not on a recommended channel, possible overlap with standard channels
(1,6,11).
In the 2.4 GHz band, WiFi channels are only separated by 5 MHz, but each AP requires 20 MHz bandwidth.
Only APs configured on channels 1, 6 or 11 do not overlap with adjacent channels. Overlapping channels create ACI
(Adjacent Channel Interference) and can reduce performance.
40 MHz bandwidth
:
The AP is using 40 MHz channel width on 2.4G band, possible overlap with adjacent channels.
In the
2.4 GHz band, WiFi channels are only separated by 5 MHz. The 802.11n standard allows bonding channels to create a 40
MHz wide channel
.
However, 40 MHz channels are not recommended on the 2.4GHz bandwidth as they can overlap with
APs configured on adjacent channels. Overlapping channels create ACI (Adjacent Channel Interference) and can reduce
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