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Quick Reference Guide 55
Network Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
C
HECK THE NETWORK LIGHT ON THE FRONT OF THE COMPUTER — If the link
integrity light is off (see "Controls and Lights" in your User’s Guide), no network
communication is occurring. Replace the network cable.
C
HECK THE NETWORK CABLE CONNECTOR — Ensure that the network cable is firmly
inserted into the network connector on the back of the computer and the network jack.
R
ESTART THE COMPUTER AND ATTEMPT TO LOG ON TO THE NETWORK AGAIN
CHECK 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 HARDWARE TROUBLESHOOTER — See "Hardware Troubleshooter" on page 41.
Power Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
Product Information Guide
.
I
F THE POWER LIGHT IS GREEN AND THE COMPUTER IS NOT RESPONDING — See
"Diagnostic Lights" on page 33.
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.
I
F THE POWER LIGHT IS OFF — The computer is either turned off or is not receiving
power.
• Reseat the power cable in the power connector on the back of the computer and the
electrical outlet.
• Bypass power strips, power extension cables, and other power protection devices to
verify that the computer turns on properly.
• Ensure that any power strips being used are plugged into an electrical outlet and are
turned on.
• Ensure that the electrical outlet is working by testing it with another device, such as a
lamp.
• Ensure that the main power cable and front panel cable are securely connected to the
system board (see "System Board Components"
in your User’s Guide
).