3EC 36716 BAAA TCZZA Ed. 01
5 Troubleshooting
28
Both LEDs stay green. When an ATM cell is processed in a channel, the associated LED
will go off for a short time.
USB bus congestion The USB LED flashes red during a session in case of USB bus congestion.
Solution table
Indication and
problem
Solution
Speed Touch™USB does
not work:
No LEDs light up.
There is no power
supplying connection.
Verify the STUSB connections.
Check if the STUSB's cord is damaged in any way.
When using a portable computer in battery mode, it is
possible that its USB port is not powered. Refer to the
portable's User's Guide for more information.
Check if the STUSB is not connected to a low-powered
USB hub port. Refer to the USB hub's User' Guide for
more information.
Speed Touch™USB
installation failed.
Verify your computer is running one of the supported
OSs and that it meets the according minimum require-
ments.
Check whether the STUSB is not connected to a
low-powered USB hub port. Refer to the USB hub
User's Guide for more information.
USB LED flashes red, or
stays solid red.
Your USB port congests, meaning that too much traffic is
passing through the port. Avoid using multiple high
speed USB devices, e.g. scanners, speaker, etc. during
heavy duty, e.g. a data download.
Both USB LED and
ADSL LED are solid
amber.
Power On Self Test (POST) failed. Check whether the
connections are correctly made.
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