Using The Mode Button; Troubleshooting The Access Point To Cisco Controller Join Process - Cisco Catalyst 9120AX Series Getting Started Manual

Cisco Catalyst 9120AX Series Access Points
Table 2 LED Status Indications (continued)
Message Type
Operating status
Access point operating
system errors
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Miscellaneous Usage and Configuration Guidelines

Using the Mode Button

Using the Mode button (see

Reset the AP to the default factory-shipped configuration.

Clear the AP internal storage, including all configuration files.
To use the mode button, press, and keep pressed, the mode button on the access point during the AP boot cycle. Wait
until the AP status LED changes to Blue. During this, the AP console shows a seconds counter, counting the number of
seconds the mode button is pressed. Then:

To reset the AP to the default factory-shipped configuration, keep the mode button pressed for less than 20
seconds. The AP configuration files are cleared.
This resets all configuration settings to factory defaults, including passwords, WEP keys, the IP address, and the
SSID.

To clear the AP internal storage, including all configuration files and the regulatory domain configuration, keep the
mode button pressed for more than 20 seconds, but less than 60 seconds.
The AP status LED changes from Blue to Red, and all the files in the AP storage directory are cleared.
If you keep the mode button pressed for more than 60 seconds, the mode button is assumed faulty and no changes are
made.

Troubleshooting the Access Point to Cisco Controller Join Process

Ensure that your controller is running controller software Release 8.9.111.0 or later as specified in see the
Note
Cisco Wireless Solutions Software Compatibility Matrix.
Access points can fail to join a controller for many reasons: a RADIUS authorization is pending; self-signed certificates
are not enabled on the controller; the access point and the controller regulatory domains don't match, and so on.
Controller software enables you to configure the access points to send all CAPWAP-related errors to a syslog server.
You do not need to enable any debug commands on the controller because all of the CAPWAP error messages can be
viewed from the syslog server itself.
LED State
Blinking Blue
Alternating between Green and
Red
Cycling through
Red-Off-Green-Off-Blue-Off
Cycling through
Blue-Red-Green-Off
Figure 2) you can:
Message Meaning
Software upgrade in progress
Discovery/join process in progress
Access point location command invoked
from controller web interface.
General warning; insufficient inline power
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