NSG Series User’s Guide
37
CHAPTER 8
Troubleshooting
This chapter offers some suggestions to solve problems you might encounter.
None of the LEDs turn on.
Make sure that you have the power cord connected to the NSG and plugged in to an appropriate
power source. Make sure you have the NSG 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 NSG from the LAN.
• Check the cable connection between the NSG and your computer or switch.
• Ping the NSG 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 NSG’s.
• In the computer, click Start, (All) Programs, Accessories and then Command Prompt. In the
Command Prompt window, type "ping" followed by the NSG’s LAN IP address (192.168.1.1 is the
default) and then press [ENTER]. The NSG should reply.
• If you’ve forgotten the NSG’s password, use the RESET button. Press the button in for about 5 seconds
(or until the SYS LED starts to blink), then release it. It returns the NSG to the factory defaults (password
is 1234, LAN IP address 192.168.1.1 etc).
• If the NCC has managed the NSG, check the NCC's Site-Wide > Configure > General setting screen
for the NSG's current password and the NCC's Gateway > Configure > Interface addressing screen for
the NSG's current LAN IP address.
• If you’ve forgotten the NSG’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 NSG’s connection to the Ethernet jack with Internet access. Make sure the Internet
gateway device (such as a DSL modem) is working properly.
• Make sure that you enter the correct settings in the Configuration > Interface > Ethernet screen. Use
the same case as provided by your ISP.
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