After an upgrade to Cisco IOS, the AP shows page errors when viewing with a web browser. The navigational menu is missing on the left of the GUI
These errors indicate that the configuration file on the Access Point (AP) is corrupted. To resolve the issue, perform these steps:
Copy the AP's configuration on your computer.
Reset the AP to the default configuration.
Follow the steps in this section if your access point is running firmware version 11.07 or later.
Note The following steps reset all configuration settings to factory defaults, including passwords, WEP keys, the IP address, and the SSID. If you do not need to reset the entire configuration, use the Configuration Reset buttons on the System Configuration Setup page in the web-browser interface. Consult the "Resetting the Configuration" section for more information on the reset buttons in the web-browser interface.
Resetting to the Default Configuration
If you forget the password that allows you to configure the access point, you may need to completely reset the configuration. Follow the steps below to delete the current configuration and return all access point settings to the factory defaults.
Note The following steps reset all configuration settings to factory defaults, including passwords, WEP keys, the IP address, and the SSID. If you do not need to reset the entire configuration, use the Configuration Reset buttons on the System Configuration Setup page in the web-browser interface. Consult the Cisco Aironet 1200 Series Access Point Software Configuration Guide for more information on the reset buttons in the Internet browser interface. Step 1 Connect a DB-9 to RJ-45 serial cable (Cisco part number AIR-CONCAB1200) to the COM port on your computer and to the serial port on the back of the access point. For serial cable pinouts refer to "Console Cable Pinouts." Note Both the Ethernet and console ports use RJ-45 connectors. Be careful to avoid accidently connecting the serial cable to the Ethernet port connector. Step 2 Open a terminal-emulation program on your computer. Note These instructions describe Microsoft HyperTeminal; other programs are similar. Step 3 In the Connection Description window, enter a name and select an icon for the connection and click OK.
Step 4 In the Connect To window, select the port to which the cable is connected and click OK.
Step 5 In the Port Settings window, enter the following settings:
•Bits per second (baud rate): 9600
•Data bits: 8
•Parity: No parity
•Stop bits: 1
•Flow control: Xon/Xoff or None
Step 6 Click OK, and press Enter.
Step 7 When the Summary Status screen appears, reboot the access point by unplugging the power connector or the Ethernet cable (when using in-line power) and then plugging it back in.
Step 8 When the access point reboots and the Summary Status screen reappears, type :resetall, and press Enter.
Step 9 Type yes, and press Enter to confirm the command.
Note The resetall command is valid for only 2 minutes immediately after the access point reboots. If you do not enter and confirm the resetall command during that 2-minute period, reboot the access point again. Step 10 After the access point reboots and the Express Setup screen appears, reconfigure the access point by using the terminal emulator or an Internet browser.
Once the AP is reset, it goes to factory default settings. These include the 10.0.0.1 IP address. Change the IP address from the Command Line Interface (CLI).