|Description||This article describes the case when FAP-U431F radios show 'PowerDown' status in 'show interfaces Dot11Radio' output on FortiWLC due to 802.3af PoE power.|
|Scope||FortiWLC, FAP-U43xF - v8.5.x and v8.6.x.|
show interfaces Dot11Radio
AP ID AP Name IfIndex AP Model AP Mode Admin State Op State RF Band Primary Oper Channel Channel Width Uplink Type Feature Override Group
3 AP-3 3 FAP-U431F ScanRogues Up PowerDown 802.11ac 52 52 20-mhz Downlink 0 off
2. When the radios are in a 'PowerDown' state, the radios do not broadcast the SSIDs. Instead of that, the radios should be in 'Enabled' mode.
3. Per AP datasheet, FAP-U431F requires 802.3at (PoE+) power. For other AP models PoE power requirements, refer to the datasheet: FortiAP u-series.
5. To verify the current PoE power drawn on the AP, use the below commands on WLC and AP CLI:
show ap <AP_ID>
Connectivity Layer : L2
conn ap <AP_ID>
ap 4> sys p
6. If the issue remains then upgrade WLC to the new 8.6-5 because there is a similar bug 783465 which is fixed in WLC 8.6-5 (release notes link below). Before WLC upgrade, download the WLC running-config backup and diagnostics: FortiWLC release notes: fixed issues.