Siemens Simens Gigaset WLAN dsl/cable SE551 - Manual (Page 122)

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Appendix
Gigaset SE551 WLAN dsl/cable / ENG / A31008-M1029-B101-2x-7619 / appendix.fm / 17.11.2008
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Trouble shooting
This section describes common problems and their solution. The Gigaset SE551 WLAN
dsl/cable is easy to monitor thanks to its LED displays. Problems can be quickly identi-
fied. If you cannot solve the connection problem after checking the LED displays, please
consult the other sections of the following table.
Symptom Possible cause and solutions
Power lamp does not light
up. No power supply.
ì
Check whether the mains adapter is connected to
the Gigaset SE551 WLAN dsl/cable and a power
outlet.
ì
Check whether the device is switched on.
ì
Check whether the power outlet and the mains
adapter are working properly. If the mains adapter
is not working properly, please get in touch with
our customer service unit (see page 127).
The LAN LED on a connected
device does not light up. No LAN connection
ì
Make sure that the connected device is switched
on.
ì
Check whether the Ethernet cable is plugged in.
ì
Check that you are using the right cable type
(CAT5) and that the cable is not too long (100 m).
ì
Check that the network card on the connected
device and the cables are not defective. If neces-
sary, replace a defective network card or cable.
ì
Use the Windows device manager (My Computer –
Properties) to check whether the network card is
functioning. If you see a red cross or a question
mark, then the driver may not have been installed
or there is a resource conflict. Follow the Windows
instructions to remedy the problem.
The LAN LED does not light
up after synchronisation.
ì
Check the cable. Check that the cable is correctly
connected to the DSL or cable modem. Check that
the DSL modem is connected to the splitter.