TRENDnet TDM-E400 - Manual (Page 188)

188
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Troubleshooting
This appendix suggests solutions for problems you may encounter
in installing or using the Ethernet Modem Router , and provides
instructions for using several IP utilities to diagnose problems.
Contact Customer Support if these suggestions do not resolve the
problem.
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 Ethernet Modem Router 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 ADSL port and your wall phone
jack. Allow about 30 seconds for the device to
negotiate a connection with your ISP.
Ethernet 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 Ethernet Modem
Router . 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 Use the ping utility, described on page 173, to check
whether your PC can communicate with the Ethernet
Modem Router ’s LAN IP address (by default
192.168.1.254). 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 “Quick
Start Part 2 — Configuring Your Computers,” for
instructions). If it is not, correct the address or
configure the PC to receive IP information
automatically.
• Verify with your ISP that the DNS server