We have been installing new AP's the past few days and are having an issue with one not showing up on the controller's web interface. If I plug the AP into another switch, it works fine. So I'm assuming it must be a config issue on the other switch. The problem is, I have copied the port config from the working switch to the non working switch and still no luck. Here is my working port config:
switchport access vlan 30
switchport mode access
no ip address
mls qos trust dscp
Is there anything else I need to be looking for? Thanks.
Did you "prime" the AP on a different WLC prior to putting it into production?
If so, try the following CLI steps:
â¢ DO NOT ALLOW THE AP TO JOIN THE WIRELESS LAN CONTROLLER.
â¢ IF POSSIBLE, type the following commands on the problematic AP:
ï¾ clear lwapp private-config (This will bring the AP to factory default.);
ï¾ clear lwapp ap ip address
ï¾ clear lwapp ap hostname
ï¾ clear lwapp ap controller ip address
Let the AP connect to the Wireless LAN controller.
If an AP refuses to join the Wireless LAN Controller, type the following command from the AP:
lwapp ap controller ip address
Thanks. The AP though connects just fine to the WLC if it's connected via a different switch. But whenever it's connected to this switch, it does not connect. That's why I posted the port config of both switches. There must be something else on the switch I need to look at though.
What type of switch are you connecting the AP to? You could check to see if it's a bad port, ASIC, or cable drop.
I've tried two different switches in this same bldg and neither work. I've also tried different ports on the switches. Isn't there some port config that I may need to check? One is a Cisco POE 3550 and the other is a 2950.
When you plug the AP to the switch, what are the logs on the AP? Can the AP ping the Management Interface?
Yes the WLC can get to that bldg because I have other AP's in that bldg that work just fine. How do I go about viewing the logs on the AP when I plug it into the switch? Sorry, never done that before, and not sure how. Thanks.
The AP may not be receiving it's IP Address/Mask/Gateway. Check that the VLAN's gateway (SVI) is set up appropriately on the switch or is reachable on the upstream switch.
Can you give me some ideas how I can check the VLAN's gateway on the switch? I am on the switch's CLI, but not sure how to do that part.
Use "Show ip interfaces brief"
You should see a VLAN interface which is the gateway for the VLAN the AP is on. Without the gateway you are on layer 2 but do not have layer 3 communication to the controller. Make sure it's the same number as you put on the interface using "switchport access vlan XX"