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]

Thanks, I already checked this and I couldn't see anything I have double checked again still nothing I tried to ping the MINT ID but still no response.

I will proceed with getting the AP replaced.

Thank you for all your help!

[Andrew_Webster]

One last thing that I'd try, assuming there are other APs at that site that are functioning.:

1. connecting to a working remote AP at the site via ssh/telnet.
2. use the command "show mint neighbors" - You will see all APs on the same Layer2 and maybe some Layer 3 neighbors depending on how your config is setup. The Mint-ID which is XX.XX.XX.XX contains part of the MAC address of the AP (the last 3 digits); eg MAC address 5C-0E-8B-11-22-33 will show up as Mint ID: 0B.11.22.33. If it doesn't show up, then the AP is probably hosed.
3. Try pinging the mint address using the command: "mint ping XX.XX.XX.XX" if you get a response continue to next step.
4. Now the cool part: use the command: "connect mint-id XX.XX.XX.XX" - This will open a Layer 2 CLI session with the target AP. This is especially useful to get into an AP that doesn't get an IP address for some reason.
5. You can now troubleshoot / factory default the problem AP.

[Andrew_Webster]

A couple comments on the config:

• It appears that the switch port vlan 4 config is consistent, the problem lies elsewhere.
• Why is there an IP address listed in interface vlan 4? If you are using dhcp, it should read "ip address dhcp"
• The DHCP helper is usually configured on the switch, not on the AP. Only the switch has the switch virtual interface (SVI) for vlan 4 should have this configured.
• "allowing" all VLANs into the AP can cause issues if there are APs on the other VLANs that could be visible over layer 2.

[Michael_Wright]

• The APs IP addresses are Static they will be assigned the IP listed under that VLAN
• DHCP helper address is configured on the SVI of the switch as well as in the profile just for peace of mind at the moment.

I believe the AP is faulty I have a total of 200 APs on multiple sites all with similar if not the same configuration, they all function correctly. The 10 on this site are all up and functioning correctly with the same configuration listed above, but this one just doesn't obtain an IP address ever.