Otherwise, look through the following checklist for possible solutions:
Restart
Heed the advice at the beginning of Chapter 6: restarting your computer
will fix 99% of all problems. This is never truer than when diagnosing
a networking problem.
Bad cables?
Make sure the green light is on next to each cable you??™ve plugged in. If
not, try replacing one or more of the cables, especially if they??™re old or
their connectors are worn.
386 | Chapter 7: Networking and Internet
Blinkenlights
When you transfer data across a network connection, each network card
and the hub (if you have one) should have an ???activity??? light that flashes.
Some devices have separate lights for receiving and transmitting data,
while others have only a single light for all incoming and outgoing communication.
Activity lights tend to flash intermittently and irregularly; if
they flash regularly, it could be a sign of a problem with one of the
devices.
No dupes
Make sure no two computers on your network are attempting to use the
same IP address or computer name (set in Control Panel ??? System ???
Advanced system settings ??? Computer Name tab, and discussed in
Chapter 8).
Drivers
Make sure you have the latest drivers for each network adapter on your
PC, and remove any proprietary network software that may have come
with your network hardware.
Firmware
Nearly all network hardware (adapters, routers, print servers, etc.) has
user-upgradable firmware.
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