Dell Dimension C521, Owner'S Manual

Page: 40 / 140

40
Solving Problems
Network Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions located in the
Product Information Guide .
Power Problems
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions located in the
Product Information Guide .
C HECK THE NETWORK CABLE CONNECTOR — Ensure that the network cable is firmly inserted into
both the network connector on the back of the computer and the network port or device.
C
HECK THE NETWORK LIGHTS ON THE BACK OF THE COMPUTER
— If the link integrity light is off,
that indicates no network communication exists. Replace the network cable. For a description of
network lights, see
"Back Panel I/O Connectors" on page 16 .
R ESTART THE COMPUTER AND LOG ON TO THE NETWORK AGAIN
C HECK YOUR NETWORK SETTINGS — Contact your network administrator or the person who set up
your network to verify that your network settings are correct and that the network is functioning.
R UN THE H ARDWARE T ROUBLESHOOTER — See "Resolving Software and Hardware Incompatibilities"
on page 54.
I F THE POWER LIGHT IS GREEN AND THE COMPUTER IS NOT RESPONDING — See "Power Light and
Diagnostic Lights" on page 47.
I F THE POWER LIGHT IS BLINKING GREEN — The computer is in standby mode. Press a key on the
keyboard, move the mouse, or press the power button to resume normal operation.