D-Link DI-804 User Manual page 51

§ The unit is not receiving the correct voltage from the power supply.
Resolution:
§ Download and upgrade the latest firmware.
§ Make sure the correct firmware has been used while upgrading. Use only
the firmware provided on D-Link's web or FTP sites.
§ Use only the power adapter provided.
The Link or Act LED's do not turn on.
Cause:
§ The network cable is not connected.
§ The network cable is connected but not the right type, whether it is patch
or straight-through.
Resolution:
§ Make sure that both ends of the cable are connected.
§ Try using another cable.
§ If you are using a straight-through cable, try a patch cable and
vice-versa.
Sometimes my Broadband Router stops working or locks up.
Cause:
§ Someone has attempted to hack into someone on your LAN.
§ The Broadband Router has detected harmful data trying to access your
LAN.
§ The NAT table is full.
Resolution:
§ Reboot the Broadband Router by turning the power to the unit off and
then on again. Some types of hacker tools use very non-standard data
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