ZyXEL Communications MES3500-24F User Manual

 Chapter 4 The Web Configurator

MES3500-24/24F User’s Guide

Disable all ports.

Misconfigure the text configuration file.

Forget the password and/or IP address.

Prevent all services from accessing the Switch. 

Change a service port number but forget it.

Note: Be careful not to lock yourself and others out of the Switch. If you do lock yourself 

out, try using out-of-band management (via the management port) to configure 

the Switch.

If you lock yourself (and others) from the Switch or forget the administrator password, you will 
need to reload the factory-default configuration file or reset the Switch back to the factory defaults.

Uploading the factory-default configuration file replaces the current configuration file with the 
factory-default configuration file. This means that you will lose all previous configurations and the 
speed of the console port will be reset to the default of 9600bps with 8 data bit, no parity, one stop 
bit and flow control set to none. The password will also be reset to “1234” and the IP address to 
192.168.1.1. 

To upload the configuration file, do the following:

Connect to the console port using a computer with terminal emulation software. See 

 for details.

Disconnect and reconnect the Switch’s power to begin a session. When you reconnect the Switch’s 
power, you will see the initial screen. 

When you see the message “Press any key to enter Debug Mode within 3 seconds ...” press 
any key to enter debug mode.

Type atlc after the “Enter Debug Mode” message.

Wait for the “Starting XMODEM upload” message before activating XMODEM upload on your 
terminal.