ZyXEL Communications 1000 ユーザーズマニュアル

ZyWALL USG 1000 User’s Guide

This chapter offers some suggestions to solve problems you might encounter. 

• You can also refer to the logs (see 

). For individual log 

descriptions, 

. 

For the order in which the ZyWALL applies its features and checks, see 

. 

None of the LEDs turn on.

Make sure that you have the power cord connected to the ZyWALL and plugged in 
to an appropriate power source.  Make sure you have the ZyWALL turned on. 
Check all cable connections.

If the LEDs still do not turn on, you may have a hardware problem. In this case, 
you should contact your local vendor.

Cannot access the ZyWALL from the LAN.

• Check the cable connection between the ZyWALL and your computer or switch. 
• Ping the ZyWALL from a LAN computer. Make sure your computer’s Ethernet 

card is installed and functioning properly. Also make sure that its IP address is in 

the same subnet as the ZyWALL’s.

• In the computer, click Start, (All) Programs, Accessories and then 

Command Prompt. In the Command Prompt window, type "ping" followed 

by the ZyWALL’s LAN IP address (192.168.1.1 is the default) and then press 

[ENTER]. The ZyWALL should reply.

• If you’ve forgotten the ZyWALL’s password, use the RESET button. Press the 

button in for about 5 seconds (or until the PWR LED starts to blink), then 

release it. It returns the ZyWALL to the factory defaults (password is 1234, LAN 

IP address 192.168.1.1 etc.; see your User’s Guide for details).