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

[Michael_Wright]

AP interface config:

interface ge1
switchport mode trunk
switchport trunk native vlan 4
no switchport trunk native tagged
switchport trunk allowed vlan 1-4094
interface vlan4
description
ip address XX.XXX.XX.XX/XX
ip dhcp client request options all
ip helper-address XX.XXX.XX.XX

Switchport config:

interface FastEthernet2/0/23
description Link to APXX
switchport trunk encapsulation dot1q
switchport trunk native vlan 4
switchport mode trunk
no lldp med-tlv-select power-management
end

Thanks

[Andrew_Webster]

The fact that you are seeing LLDP info on the switch port indicates that a) the AP booted up OK; b) there is nothing physically wrong with the interface. Both of these facts point to a configuration mismatch of some sort.

I've seen many instances where the AP has been configured incorrectly either by accident (typos) or due to unintentional behavior caused by profile overrides. The AP's configuration ends up such that the network interface does not match the switch port setting.

Please post the output of the AP's exected interface config. You can do this from the controller CLI with "show run device device_mac_address" and include all the lines for "interface ge1, interface vlan, etc".

Also include the switch's interface config for that interface.

[Michael_Wright]

DHCP is Vlan 4 and switchport is trunking Vlan 4, plenty of DHCP leases available within the scope, do we agree this AP is faulty?

Thanks for everyone's help so far, it's been really helpful!

[Timo1]

Native vlan is 4 and DHCP is vlan 1? The AP need a untag VLAN to get a IP address, if it's a clean AP. Do you have free DHCP IPs?

Check for the right VLAN as untag and available DHCP address. If this are booth right, the AP is damage.

[Michael_Wright]

I have 10 of these access points 3 on one vlan and 7 on another all of this aps are configured the same and 9 of the 10 have been adopted and are functioning correctly​ The switchport config is Switchport mode trunk Switchport trunk native vlan 4 This access point isn't getting a lease from DHCP no matter which vlan I put it in. Thanks