Appendix A Troubleshooting - ZyXEL Communications ZyWALL 5 User Manual

This chapter covers potential problems and possible remedies. After each problem
description, some instructions are provided to help you to diagnose and to solve the problem.
Problems Starting Up the ZyWALL
Chart A-1 Troubleshooting the Start-Up of Your ZyWALL
PROBLEM
None of the Make sure that you have the included power adaptor or cord connected to the ZyWALL and
LEDs turn on to an appropriate power source.
when you turn
Replace the fuse if it is burnt out (see the appendices for more on changing a fuse).
on the
ZyWALL.
If the error persists, you may have a hardware problem. In this case, you should contact your
vendor.
Cannot 1. Check to see if the ZyWALL is connected to your computer's console port.
access the
2. Check to see if the
ZyWALL via
communications program is
the console
configured correctly. The
port.
communications software
should be configured as
follows:
Problems with the LAN Interface
PROBLEM
Cannot access Check your Ethernet cable type and connections. Refer to the Quick Start Guide for LAN
the ZyWALL connection instructions.
from the LAN.
Make sure the computer's Ethernet adapter is installed and functioning properly.
Cannot ping Check the 10M/100M LAN LEDs on the front panel. One of these LEDs should be on. If
any computer they are both off, check the cables between your ZyWALL and hub or the station.
on the LAN.
Verify that the IP address and the subnet mask of the ZyWALL and the computers are on
the same subnet.
Troubleshooting
Please see our included disk for further information.
CORRECTIVE ACTION
VT100 terminal emulation
9600 bps is the default speed on leaving the factory. Try
other speeds in case the speed has been changed.
No parity, 8 data bits, 1 stop bit, data flow set to none.
Chart A-2 Troubleshooting the LAN Interface
CORRECTIVE ACTION
ZyWALL 5 Internet Security Appliance
Appendix A
Troubleshooting
A-1