Appendix A Troubleshooting; Problems Starting Up The Zyair; Problems With The Password - ZyXEL Communications ZyAIR B-420 User Manual

This appendix 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 ZyAIR

PROBLEM
None of the LEDs
turn on when I
plug in the power
adaptor.
The ZyAIR
reboots
automatically
sometimes.

Problems with the Password

PROBLEM
I cannot access
the ZyAIR.
Troubleshooting
Chart A-1 Troubleshooting the Start-Up of Your ZyAIR
Make sure you are using the supplied power adaptor and that it is plugged in to an
appropriate power source. Check that the power source is turned on.
If the problem persists, you may have a hardware problem. In this case, you should
contact your local vendor.
The supplied power to the ZyAIR is too low. Check that the ZyAIR is receiving
enough power.
Make sure the power source is working properly.
Chart A-2 Troubleshooting the Password
The Password and Username fields are case-sensitive. Make sure that you enter
the correct password and username using the proper casing.
Use the RESET button on the top panel of the ZyAIR to restore the factory default
configuration file (hold this button in for about 10 seconds or until the link LED turns
red). This will restore all of the factory defaults including the password.
ZyAIR B-420 Wireless LAN Ethernet Adapter and Bridge
Troubleshooting
CORRECTIVE ACTION
CORRECTIVE ACTION
Appendix A
A-1