User Guide

Solving problems
STUSB LEDs
Startup phases
Failed POST
AppendixA Troubleshooting
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3EC 36714 AAAA TCZZA Ed. 02
AppendixA Troubleshooting
This appendix provides information on how to identify and correct some
common problems you may encounter when using the STUSB.
In most cases the described solutions will solve the problem.
However, if the problem keeps persistent, reinstallation of your STUSB
might solve the problem.
If reinstallation has not resolved the problem, contact the company from
which you purchased the STUSB for assistance.
Your STUSB is equipped with two Bicolored LEDs . These indicators
indicate the status of the STUSB. Checking the STUSB status may be
a first step in isolating the problem.
At startup, the STUSB passes three phases:
Phase
USB LED ADSL LED
Description
Color Timing Color Timing
Attaching and
Configuring
Red
Green
Flashing,
very short
time
Solid,
2seconds
Off
Green
-
Solid,
2seconds
The STUSB is
attached.
Ready to
continue.
Downloading Green
Green
Flashing, 1
to 10
seconds
Solid
Off
Amber
-
Solid
Downloading
driver software
from computer.
Download
successful.
Connecting to
ADSL
Green
Green
Solid
Solid
Green
Green
Flashing
Solid
Pending ADSL
line
synchronization
Ready for
connectivity
When a Power on Self Test (POST) failed, both LEDs are solid amber.