ZyWALL User's Guide

Chapter 49 Troubleshooting
ZyWALL USG 100/200 Series User’s Guide
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49.1 Resetting the ZyWALL
If you cannot access the ZyWALL by any method, try restarting it by disconnecting and
reconnecting the power. If you still cannot access the ZyWALL by any method or you forget
the administrator password(s), you can reset the ZyWALL to its factory-default settings. Any
configuration files or shell scripts that you saved on the ZyWALL should still be available
afterwards.
Use the following procedure to reset the ZyWALL to its factory-default settings. This
overwrites the settings in the startup-config.conf file with the settings in the system-
default.conf file.
" This procedure removes the current configuration.
If you want to reboot the device without changing the current configuration, see Chapter 48 on
page 743.
1 Make sure the SYS LED is on and not blinking.
2 Press the RESET button and hold it until the SYS LED begins to blink. (This usually
takes about five seconds.)
3 Release the RESET button, and wait for the ZyWALL to restart.
You should be able to access the ZyWALL using the default settings.
49.2 Getting More Troubleshooting Help
Search for support information for your model at www.zyxel.com for more troubleshooting
suggestions.