AP7522 POE issue

[Michael_Wright]

Please help, today i have being setting up and configuring 10 AP7522s i have got 7 all working correctly but for some reason 3 have POE issues they are constantly rebooting and do not say up. I have changed the cable, directly connected the AP tried different POE config on the switchports but nothing.

The switch is providing POE so all i get is the below:

*Oct 16 10:56:16.747: %ILPOWER-7-DETECT: Interface Fa2/0/23: Power Device detected: IEEE PD
*Oct 16 10:56:17.787: %ILPOWER-5-POWER_GRANTED: Interface Fa2/0/23: Power granted
*Oct 16 10:56:22.435: %LINK-3-UPDOWN: Interface FastEthernet2/0/23, changed state to up
*Oct 16 10:56:24.463: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/0/23, changed state to up
*Oct 16 10:56:40.723: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/0/23, changed state to down
*Oct 16 10:56:45.744: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/0/23, changed state to up
*Oct 16 10:57:01.191: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/0/23, changed state to down
*Oct 16 10:57:05.926: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/0/23, changed state to up
*Oct 16 10:58:03.314: %LINEPROTO-5-UPDOWN: Line protocol on Interface FastEthernet2/0/23, changed state to down
*Oct 16 10:58:04.328: %LINK-3-UPDOWN: Interface FastEthernet2/0/23, changed state to down
*Oct 16 10:58:03.390: %ILPOWER-7-DETECT: Interface Fa2/0/23: Power Device detected: IEEE PD
*Oct 16 10:58:04.396: %ILPOWER-5-POWER_GRANTED: Interface Fa2/0/23: Power granted
*Oct 16 10:58:09.030: %LINK-3-UPDOWN: Interface FastEthernet2/0/23, changed state to up

it just repeats over and over

Please help thanks

[Andrew_Webster]

If the AP is not getting an IP address, this indicates a Layer 2 issue between the DHCP server and the AP.

This is typically cased by a VLAN mismatch.

[Michael_Wright]

APs are discovered by DHCP options

[Andrew_Webster]

How is the AP discovering the controller? DHCP options, or something else?

[Michael_Wright]

I've just checked, i misread the LLDP the AP it isn't getting an IP address. tried a reboot several time but nothing.

[Timo1]

Strange, try do disable and enable PoE to reboot the AP. If this don't work, no idea. Maybe you can try to SSH from the Cisco switch direct, if it's firewall or routing problem.