Siemens 4100 Series User Manual
Router User’s Guide
Troubleshooting
Interpreting the LED Display
The LED indicators on the front of the router give you a visual clue to the router activity. When the router
is configured and working correctly, all LED indicator lights briefly turn a solid green. The following table
shows the possible states indicated by the LEDs. If the LEDs indicate a problem, refer to “Resolving
Specific Issues” later in this chapter.
is configured and working correctly, all LED indicator lights briefly turn a solid green. The following table
shows the possible states indicated by the LEDs. If the LEDs indicate a problem, refer to “Resolving
Specific Issues” later in this chapter.
LED
pwr
dsl
USB
enet*
Off
No power to
router
router
-
No power to router
- DS
L signal not
detected
- No power to
router
router
- No USB device
connected
- USB driver not
installed or
installed
incorrectly
connected
- USB driver not
installed or
installed
incorrectly
- No power to
router
- No Ethernet
device connected
- Wrong Ethernet
cable used
(cross- over
instead of
straight-through)
router
- No Ethernet
device connected
- Wrong Ethernet
cable used
(cross- over
instead of
straight-through)
Green
Normal system
operation
operation
Connected and ready for
data traffic
data traffic
Normal USB
operation, link okay,
no user traffic
operation, link okay,
no user traffic
Normal Ethernet
operation, link okay,
no user traffic
operation, link okay,
no user traffic
Blinking
Green
Green
N/A
- Steady blinking:
DSL attempting to
connect
- Sporadic blinking:
DSL connected and
user traffic flowing
DSL attempting to
connect
- Sporadic blinking:
DSL connected and
user traffic flowing
USB user traffic
flowing in either
direction
flowing in either
direction
Ethernet user traffic
flowing in either
direction
flowing in either
direction
Blinking
Red/
Green
Red/
Green
Flash Write in
progress
progress
N/A N/A
N/A
Red
- POST tests in
progress (first
30 sec. after
powering on or
rebooting)
- POST error
occurred
progress (first
30 sec. after
powering on or
rebooting)
- POST error
occurred
N/A N/A
N/A
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