User's Manual

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!
尚未定義樣式。
User’s Guide Troubleshooting
102
C Troubleshooting
This appendix suggests solutions for problems you may encounter
in installing or using the
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尚未定義樣式。
, and provides
instructions for using several IP utilities to diagnose problems.
Contact Customer Support if these suggestions do not resolve the
problem.
Tro ub le sho o ting Sug g e stio ns
Problem Troubleshooting Suggestion
LEDs
Power LED does not
illuminate after product is
turned on.
Verify that you are using the power cable provided
with the device and that it is securely connected to
the
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!
尚未定義樣式。
and a wall socket/power
strip.
Internet LED does not
illuminate after phone
cable is attached.
Verify that a standard telephone cable (called an
RJ-11 cable) like the one provided is securely
connected to the DSL port and your wall phone port.
Allow about 30 seconds for the device to negotiate a
connection with your ISP.
LINK LAN LED does not
illuminate after Ethernet
cable is attached.
Verify that the Ethernet cable is securely connected
to your LAN hub or PC and to the
錯誤! 未定義樣
式。. Make sure the PC and/or hub is turned on.
Verify that you are using a straight-through type
Ethernet cable to the uplink port on a hub or a cross-
over type cable to a stand-alone PC. If you
connected the device to an ordinary hub port (not
Uplink), you must use a straight-through cable. (To
check: hold the connectors at each end of the cable
side-by-side with the plastic spring facing down.
Looking at the wires from left to right, if the first,
second, third, and sixth wires are the same color on
the two connectors, then it is a straight-through type.
On a cross-over type, wire 1 on one connector
should be the same color as wire 3 on the other. The
same is true of wires 2 and 6.)
Verify that your cable is sufficient for your network
requirements. A 100 Mbit/sec network (10BaseTx)
should use cables labeled CAT 5. A 10Mbit/sec
network may tolerate lower quality cables.
Internet Access
My PC cannot access
Internet
Run a health check on your device. See Health
Check on page 32.
Use the ping utility, discussed in the following
section, to check whether your PC can communicate
with the device’s LAN IP address (by default
192.168.1.1). If it cannot, check the Ethernet cabling.
If you statically assigned a private IP address to the
computer, (not a registered public address), verify
the following:
Check that the gateway IP address on the
computer is your public IP address (see
Current Status on page 10 for instructions
on viewing the IP information.) If it is not,
correct the address or configure the PC to