SMC Networks BARRICADE SMC7901WBRA2 B1 - Manual (Page 133)

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A
T
ROUBLESHOOTING
D
IAGNOSING
LED I
NDICATORS
I
F
Y
OU
C
ANNOT
C
ONNECT TO THE
I
NTERNET
◆ Check that your computer is properly configured for TCP/IP.
◆ Make sure the correct network adapter driver is installed for your PC
operating system. If necessary, try reinstalling the driver.
◆ Check that the network adapter’s speed or duplex mode has not been
configured manually. We recommend setting the adapter to auto-
negotiation when installing the network driver.
Table 3: LED Indicators
Symptom Action
Power/LAN LEDs are off ◆ The AC power adapter may be disconnected. Check
connections between the ADSL Router, the power adapter,
and the wall outlet.
LAN LED is off
(when port connected)
◆ Verify that the ADSL Router is powered on.
◆ Be sure the cable is plugged into both the ADSL Router and
corresponding PC.
◆ Verify that the proper cable type is used and its length does
not exceed specified limits.
◆ Check the cable connections for possible defects. Replace the
defective cable if necessary.
WLAN LED is off ◆ There is no detected signal from the 802.11b/g radio. Check
connections and the management interface.
ADSL Sync LED is off ◆ Verify that the ADSL Router is powered on.
◆ Be sure the cable is plugged into both the ADSL Router and
an RJ-11 telephone jack.
◆ Check the cable connections on the ADSL Router, and wall
jack, for possible defects. Replace the defective cable if
necessary.
ADSL Data LED is off ◆ Verify that the ADSL link is on.
◆ Be sure you have configured the ADSL Router with an IP
address for the WAN port according to the instructions from
your service provider.
◆ Follow the suggestions in the next section.