Chapter 42 Troubleshooting - ZyXEL Communications ZyWALL 110 User Manual

This chapter offers some suggestions to solve problems you might encounter.
• You can also refer to the logs (see
• For the order in which the ZyWALL/USG applies its features and checks, see
760.
None of the LEDs turn on.
Make sure that you have the power cord connected to the ZyWALL/USG and plugged in to an
appropriate power source. Make sure you have the ZyWALL/USG 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/USG from the LAN.
• Check the cable connection between the ZyWALL/USG and your computer or switch.
• Ping the ZyWALL/USG 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/USG's.
• In the computer, click Start, (All) Programs, Accessories and then Command Prompt. In
the Command Prompt window, type "ping" followed by the ZyWALL/USG's LAN IP address
(192.168.1.1 is the default) and then press [ENTER]. The ZyWALL/USG should reply.
• If you've forgotten the ZyWALL/USG'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/
USG to the factory defaults (password is 1234, LAN IP address 192.168.1.1 etc.; see your User's
Guide for details).
• If you've forgotten the ZyWALL/USG's IP address, you can use the commands through the
console port to check it. Connect your computer to the CONSOLE port using a console cable.
Your computer should have a terminal emulation communications program (such as
HyperTerminal) set to VT100 terminal emulation, no parity, 8 data bits, 1 stop bit, no flow control
and 115200 bps port speed.
I cannot access the Internet.
C
HAPTER
Chapter 6 on page
ZyWALL/USG Series User's Guide
769
Troubleshooting
151).
Chapter 40 on page
4 2