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Usually a data card is supplied with the operating software from the
net provider. With this software the PIN number of the SIM card can
be changed whenever required.
9.2
No DSL connection is established
After start-up the router automatically attempts to connect to the DSL pro-
vider. During this process, the LAN-link LED will blink green. If successful, the
LED will switch over to steady green. If, however, the connection can't be
established, the LAN-link LED will light up red. The reason for this is usually
one of the following:
Problems with the cabling?
Only the cable provided with your device should be used to connect to DSL.
This cable must be connected to the Ethernet port of your broadband access
device. The LAN link LED must light green indicating the physical connection.
Has the correct transfer protocol been selected?
The transfer protocol is set along with the basic settings. The basic setup wiz-
ard will enter the correct settings for numerous DSL providers automatically.
Only if your DSL provider is not listed, you will have to enter manually the pro-
tocol being used. In any case, the protocol that your DSL provider supplies you
with should definitely work.
You can monitor and correct the protocol settings under:
Configuration tool
LANconfig
WEBconfig
Run command
Management
Interfaces
face
Expert Configuration
Setup
LANCOM 3550 Wireless
Chapter 9: Troubleshooting
Interface settings
WAN Inter-
Interfaces
WAN Interface
73
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