Technical data
G-2 Troubleshooting and Customer Support 90362-01
General Troubleshooting
NetBlazer’s power light 
does not come on.
Make sure the AC power adapter is plugged into an active wall outlet. 
Then make sure the power adapter is securely connected to the 
NetBlazer and turn on the NetBlazer. See Chapter 2, “NetBlazer LS 
Installation” for illustrated instructions.
If the power light still doesn’t turn on, you may have a defective power 
cable. See “Obtaining Customer Support” on page G-5.
The COL light on the 
front panel is often on.
Your Ethernet cables have been disconnected or are not properly 
terminated. 
Or, multiple devices on the line are all attempting to use the line. You 
might want to think about segmenting the line so there aren’t so many 
hosts on it competing for time.
You get garbage 
characters on your 
screen when you try to 
run the Setup Utility.
Type Ctrl-x Ctrl-x to exit the Setup Utility. 
If you are running from a non-ANSI terminal, you’ll need to change to a 
different terminal. The Setup Utility only works with ANSI-compatible 
terminals.
If you are running from an ANSI-compatible terminal, check your 
terminal settings. They should be set to 9600 bps, 8 bits, 1 stop bit, no 
parity, and XON/XOFF flow control. If your settings are correct, try 
starting the Setup Utility again. If you still get garbage characters, 
contact Telebit customer support (see page G-5).
You saved your 
configuration, and now 
need to reset the 
NetBlazer to the default 
(factory) settings.
The pinhole to the right of the power switch is used to reset your 
NetBlazer LS to the factory defaults by erasing all saved configuration 
files. To reset the NetBlazer, turn the NetBlazer’s power off and insert a 
paper clip into the pinhole. Holding the paper clip firmly pushed in, turn 
the NetBlazer back on and continue to press in on the paper clip for 
five or more seconds. When you release the paper clip, the NetBlazer 
will boot up using factory default settings. This procedure erases any 
saved configuration and/or password files.










