Troubleshooting; Chapter 48 Troubleshooting - ZyXEL Communications UAG5100 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 UAG applies its features and checks, see
None of the LEDs turn on.
Make sure that you have the power cord connected to the UAG and plugged in to an appropriate
power source. Make sure you have the UAG 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 UAG from the LAN.
• Check the cable connection between the UAG and your computer or switch.
• Ping the UAG 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 UAG's.
• In the computer, click Start, (All) Programs, Accessories and then Command Prompt. In
the Command Prompt window, type "ping" followed by the UAG's LAN IP address (172.16.0.1
or 172.17.0.1 is the default) and then press [ENTER]. The UAG should reply.
• If you've forgotten the UAG'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 UAG to the factory
defaults (password is 1234, LAN IP address 172.16.0.1 or 172.17.0.1 etc.; see your User's Guide
for details).
• If you've forgotten the UAG'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.
• Check the UAG's connection to the Ethernet jack with Internet access. Make sure the Internet
gateway device (such as a DSL modem) is working properly.
C
HAPTER

Troubleshooting

Chapter 7 on page 104).
UAG5100 User's Guide
480
4 8
Chapter 45 on page 469.