ZyXEL Communications 50 User Manual
ZyWALL 50 Internet Security Gateway
Troubleshooting
26-1
Chapter 26
Troubleshooting
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. Please see our
included disk for further information.
26.1 Problems Starting Up the ZyWALL
Table 26-1 Troubleshooting the Start-Up of your ZyWALL
PROBLEM CORRECTIVE
ACTION
None of the LEDs are on when
you turn on the ZyWALL.
you turn on the ZyWALL.
Check the connection between the power adapter and the ZyWALL.
If the error persists, you may have a hardware problem. In this case,
you should contact your vendor.
you should contact your vendor.
1. Check to see if the ZyWALL is connected to your computer’s
serial port.
serial port.
VT100 terminal emulation
9600 bps is the default speed on
leaving the factory. Try other
speeds in case the speed has
been changed.
leaving the factory. Try other
speeds in case the speed has
been changed.
Cannot access the ZyWALL via
the console port.
the console port.
2. Check to see if the
communications program is
configured correctly. The
communications software should
be configured as follows:
communications program is
configured correctly. The
communications software should
be configured as follows:
No parity, 8 data bits, 1 stop bit,
data flow set to none.
data flow set to none.