Page 156 / 185 Scroll up to view Page 151 - 155
158
Appendix
The
LAN
LED on a con-
nected device does not light
up.
No LAN connection
ì
Make sure the connected device is turned 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 (<100m).
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, the driver may not have been installed or
there is a resource conflict. Follow the Windows
instructions to remedy the problem.
You cannot connect to the
Internet.
ì
Check whether the
Connect manually
option is
activated. If it is, connections cannot be opened
automatically.
ì
Select
Connect on demand
or
Always on
.
Remember that this setting may lead to higher
costs if you are billed on the time used.
ì
The connection may have been terminated manu-
ally with the
Connect on demand
option selected.
Restore the connection again manually using the
Connect
button or
Restart the Giga762SX WLAN dsl.
In both cases, the
Connect on demand
setting will
be active again.
ì
Check whether the data entered for your Internet
connection matches what your Internet service
provider has specified.
Symptom
Possible cause and solutions
Page 157 / 185
159
Appendix
After a WPS registration
attempt, the
WLAN
LED
continues to flash for some
time and the required client
was not registered.
u
More than one client has tried to register.
ì
Repeat registration after a short interval.
u
MAC access control is activated, but the desired cli-
ent is not in the MAC address list.
ì
Add the client to the MAC address list (see
page 58).
If the MAC address filter is enabled a WPS registration
attempt can not be detected by the device. In this case
LED signalling is not possible.
After a WPS registration the
WLAN
LED shows successful
registration but the desired
client was not registered.
Maybe an external device has registered with your net-
work.
ì
Change the WPA PSK key manually as soon as
possible (see page 89) and perform the WPS
registration via PIN (see page 87).
You cannot open a connec-
tion to the Giga762SX
WLAN dsl from a wireless
device.
u
You attempted to perform WPS registration on the
network adapter but the registration button was
not activated on the Giga762SX WLAN dsl.
ì
Press the
Registration
button (Scan button) on the
Giga762SX WLAN dsl and activate WPS within the
two-minutes interval on the network adapter.
u
You defined a PIN for WPS registration but the net-
work adapter does not use a PIN or uses a different
one.
ì
Check the wireless network encryption settings and
determine the PIN used by the Giga762SX WLAN
dsl. Enter this PIN on the network adapter.
u
You defined a PIN for WPS registration at the net-
work adapter but you didn’t enter this PIN at the
Giga762SX WLAN dsl PIN or not the right one.
ì
Find out the PIN that is used by the network
adapter. Enter this PIN on the Giga762SX WLAN dsl.
u
The wireless network adapter is not using the cor-
rect SSID.
ì
Change the SSID on the network adapter or use the
WPS function.
Symptom
Possible cause and solutions
Page 158 / 185
160
Appendix
You cannot open a connec-
tion to the Giga762SX
WLAN dsl from a wireless
device.
u
Either encryption has been activated on the
Giga762SX WLAN dsl but not on the wireless net-
work adapter, or an incorrect key is in use.
ì
Activate the required encryption (WPA-PSK or WEP)
on the network adapter with the correct key.
If you do not know the key, repeat key entry
(page 87) via a PC connected via cable to the
Giga762SX WLAN dsl and enter the new key on the
network adapter.
Otherwise, you can use the WPS function.
Alternatively, you can reset the Giga762SX WLAN
dsl (page 26) and then reconfigure encryption.
Warning
: Please bear in mind that this will reset
the entire configuration to the factory settings.
u
MAC access control is activated, but the PC is not
included in the MAC address list.
ì
Enter the PC in the MAC address list.
Symptom
Possible cause and solutions
Page 159 / 185
161
Appendix
The Giga762SX WLAN dsl or
other PCs cannot be reached
by a PC in the connected
LAN using a
ping
com-
mand.
ì
Make sure that TCP/IP has been installed and con-
figured on all the PCs in the local network.
ì
Check that the IP addresses have been correctly
configured. In most cases you can use the DHCP
function of the Giga762SX WLAN dsl to assign
dynamic addresses to the PCs in the LAN. In this
case, you have to configure the TCP/IP settings of all
the PCs so that they obtain the IP address automat-
ically.
If you configure IP addresses in the LAN manually,
remember to use the same subnet mask for all PCs
in the LAN. This means that the masked part of the
IP address on each PC and on the Giga762SX WLAN
dsl has to be identical.
Check whether Ethernet is specified as the Internet
connection type if the PC is connected to the LAN4/
WAN port (page 62). If this type of connection is
specified, only an external modem can be con-
nected to the LAN4/WAN port. Change the connec-
tion type or select a new LAN connection for the PC.
No connection to the config-
uration environment of the
Giga762SX WLAN dsl.
ì
Use the
ping
command to check whether you can
establish a network connection to the Giga762SX
WLAN dsl.
ì
Check the network cable between the PC you want
to use to administer the device and the Giga762SX
WLAN dsl.
ì
If the PC you want to use for administering the
device is in the router's local network, make sure
that you are using the correct IP address range
(see above).
ì
If the PC you want to use for administering the
device is not in the router's local area network, this
PC must be authorised for remote management.
Symptom
Possible cause and solutions
Page 160 / 185
162
Appendix
You cannot conduct VoIP tel-
ephone calls.
ì
The phone or the Giga762SX WLAN dsl is not con-
nected properly to the DSL port. Check the cabling
and the ports.
ì
The access data for your VoIP phones is not entered
correctly. Check the access data.
ì
You have not assigned the VoIP phone numbers to
the telephone port. Check the configuration of the
telephone ports and the extensions.
ì
Your VoIP configuration is not set up with the cor-
rect Codecs. Contact your VoIP provider and assign
the correct Codecs (see page 100).
Password forgotten or lost.
ì
Reset the Giga762SX WLAN dsl (page 26).
Warning
: Please bear in mind that this will return
all
the configuration settings to the factory settings.
You cannot access a
resource (drive or printer)
on a different PC.
ì
Make sure that TCP/IP has been installed and con-
figured on all the PCs in the local network and that
the PCs all belong to the same workgroup.
ì
Check whether the resource has been released on
the PC in question and whether you have the nec-
essary access rights.
ì
Printing: Check whether the printer has been set up
as a network printer.
Symptom
Possible cause and solutions

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