| Solution |
In a scenario where the operating channel shows as '0' in 431/433G access point, the radio configuration on the AP is as follows:
# rcfg
Radio 0: AP
channel : num=0
oper_chan : 0
r_ac md_cap : 1, 6, 11,
r_ac chan list : 1, 6, 11,
chan list : 1, 6, 11,
Radio 1: AP
channel : num=0
oper_chan : 0
chan list : 36, 40, 44, 48, 149, 153, 157, 161, 165,
hw_chan list : 36, 40, 44, 48, 52, 56, 60, 64, 100, 104, 108, 112, 116, 120, 124, 128,
132, 136, 140, 144, 149, 153, 157, 161, 165,
This issue is seen when only 802.3af power is provided to the AP. As a result, the poe status shows as low:
poe mode : low(auto)
poe mode oper : low
usb port : disabled
All radio interfaces must be disabled for 802.3af power. The access point needs to be provided with 802.3at or 802.3bt power to enable radio interfaces.
A relevant snippet from the datasheet for FortiAP 431G/433G:
PoE Mode 802.3af : Low – All Radios Disabled ;USB – Disabled
802.3at : High – Tx Power Full;Chain 2x2; USB – Disabled
802.3bt / DC : Full – Tx Power Full ; Chain 4x4;USB – Enabled
On a fully powered access point , poe mode shows as follows:
poe mode : high(auto)
poe mode oper : high
Relevant articles:
- https://community.fortinet.com/t5/FortiAP/Technical-Note-Unable-to-bring-up-all-3-radio-interface-fo....
- https://www.fortinet.com/content/dam/fortinet/assets/data-sheets/fortiap-series.pdf.
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