AP 1562i shown PoE no enough and radio off

[Ethan and Mia]

Hi all

I have problem with cisco ap 1562i

It shown poe not enough and radio off

it plug on switch 2960(fastethernet) maximum power per port 15w so I plug only 1 port  poe may be enough

WLC is 2504 it show low power on 1562i  device information

how to solve it , thank you all

[Leo Laohoo · Accepted solution]

1562 requires 39.9 watts. If the AP doesn't have enough power, nothing works.

[Ethan and Mia]

GUEST-D-SW#show power inline
Available:370.0(w) Used:117.8(w) Remaining:252.2(w)

Interface Admin Oper Power Device Class Max
(Watts)
--------- ------ ---------- ------- ------------------- ----- ----
Fa0/1 auto on 15.4 AIR-AP1815W-S-K9 4 15.4
Fa0/2 auto on 15.4 AIR-AP1815W-S-K9 4 15.4
Fa0/3 auto on 15.4 AIR-AP1815W-S-K9 4 15.4
Fa0/4 auto on 15.4 AIR-AP1815W-S-K9 4 15.4
Fa0/5 auto off 0.0 n/a n/a 15.4
Fa0/6 auto on 15.4 AIR-AP1815W-S-K9 4 15.4
Fa0/7 auto on 15.4 AIR-AP1815W-S-K9 4 15.4
Fa0/8 auto on 15.4 AIR-AP1815W-S-K9 4 15.4
Fa0/9 auto off 0.0 n/a n/a 15.4
Fa0/10 auto off 0.0 n/a n/a 15.4
Fa0/11 auto off 0.0 n/a n/a 15.4
Fa0/12 auto on 10.0 AIR-AP1562I-S-K9 4 15.4

when show poe from 2960 switch

[Leo Laohoo]

A plain 2960 can only supply up to 15.4w. This means that the "board" of the 1562i will power up but the radios will stay down because of insufficient power.
Either get a switch that supports uPoE or PoE+ or get an injector.

[Ethan and Mia]

I try PoE injector and disable radio 5ghz   butt  radio 2.4 still not working

[Leo Laohoo]

How much power is the power injector providing?