D-Link DI-1750 Installation Manual - page 18
DI-1750 Router
18
Troubleshooting
This chapter describes some troubleshooting techniques, incase of malfunctioning of DI-1750 router. After each description,
we have provided some instructions to help you to diagnose and resolve the problem. If you are not able to locate source of
problem, contact your local reseller or D-Link support center for further help.
The LED indicators indicate the current operation of the Router. The standard configuration indicators on the rear
panel of the router case are described in the following table:-
No.
Indication
Description
Remarks
1
100M
100Mbps Ethernet LED indicator
LED ON indicates this port operates at
100Mbps.
2
ACT
10/100M Ethernet LED indicates
receiving and transmitting data
Blinking LED indicates that there’s data
receive/transmit on the Fast Ethernet port
3
LINK
10/100M Ethernet TP port link
active indicator
When valid connection is established
between the LAN port and the
Switch/Hub through a CAT5 cable, this
LED indicator will turn ON.
The standard configuration indicators on the front panel of the router case are described in the following table:-
Name
Description
Power
LED ON indicates that the Router is powered ON
SYS
LED ON indicates that the system has started successfully
S1
LED ON indicates that there is an interface card in first slot
S2
LED ON indicates that there is an interface card in second slot
Problem Powering Up the DI-1750 Router
None of the LEDs are ON when you power up the router:-
•
Check the AC mains power is turned ON.
•
Check Router power switch is turned ON.
•
Check whether the power cord is properly connected to the Router.
Problem Configuring Router through Console port
Nothing is displayed on terminal:-
•
Check whether router is powered ON properly.
•
Check whether the router console port is properly connected to PC serial port.
•
Check whether Terminal communication program (Hyperterminal) is configured properly.
Problems Connecting WIC/VIC Cards
Router does not detect the WIC/VIC cards:-
•
Confirm that the card is properly inserted in the slot.
•
Confirm that the interface is installed in a proper slot please refer to Interface Combination. Matrix for proper slot
configuration.
Router reboots after inserting WIC/VIC:-
•
Confirm that the interface card is properly inserted in the slot.
•
Check whether LED indication is proper in the front panel w.r.t. slot.
•
The WIC/VIC Interface card might be faulty. Turn OFF router immediately and consult your reseller.
•
Confirm that the interface is installed in the proper slot please refer to Interface Combination Matrix for proper slot
configuration.