Motorola AP 8232 - Unable to connect to configuration-manager: Resource temporarily unavailable

[pu_lee]

I have a problem with Motorola AP 8232 (http://www.motorolasolutions.com/US-E...) as below:

Step 1: Reset factory default with username and password as reset/FactoryDefault
Step 2: After the AP has been reset successfully, I login with username and password as admin/admin or any
Step 3: I cannot enter configuration mode. It only displays diag mode with limit commands

Here is log:

Please press Enter to activate this console.
ap8232-A3625C login: admin
Password:
Unable to connect to configuration-manager: Resource temporarily unavailable
Welcome to CLI

Unable to connect to configuration-manager, executing limited diagnostic shell

==== WARNING ====

The CLI process has not initialized.
Please exit this shell and try again.
If this problem persists then this shell
provides a limited subset of commands
to allow you to restore the system to
a working state. Please use "help" or "?"
to see a list of available commands.
diag >
diag >
diag >
diag >enable
Unrecognized command
diag >
boot Boot commands
delete Deletes specified file from the system.
exit Exit from the CLI
help Description of the interactive help system
logout Exit from the CLI
reload Halt and perform a warm reboot
service Service Commands
show Show running system information
upgrade Upgrade firmware image

diag >

Please help me to solve it.
Thank you so much