NXC Series User’s Guide
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CHAPTER 36
Troubleshooting
36.1 Overview
This chapter offers some suggestions to solve problems you might encounter.
36.1.1 General
This section provides a broad range of troubleshooting tips for your device.
None of the LEDs turn on.
Make sure that you have the power cord connected to the NXC and plugged in to an appropriate
power source. Make sure that you have both power cords connected to the NXC and plugged into
appropriate power sources. Make sure you have both of the NXC’s power switches turned on. Make
sure you have the NXC 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 NXC from the LAN.
• Check the cable connection between the NXC and your computer or switch.
• Ping the NXC 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 NXC’s.
• In the computer, click Start > Programs > Accessories and then Command Prompt. In the Command
Prompt window, type "ping" followed by the NXC’s LAN IP address (192.168.1.1 is the default) and then
press [ENTER]. The NXC should reply.
• If you’ve forgotten the NXC’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 NXC 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 NXC’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.
• Check if your computer is connecting to the correct port after you change the default settings of the
management VLAN. Go to the Configuration > Interface > VLAN screen to check the members of the
management VLAN.
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