Network and Internet Troubleshooting

Use this section to prepare for troubleshooting questions involving network hardware and software on the A+ Certification Exams and in your day-to-day work as a computer technician.

Can't Access Network Resources

A failure to access network resources can be caused by

  • Not logging into the network

  • Duplicate computer name or IP address error

  • Bad cable, bad connection or defective network adapter

  • APIPA-provided IP address instead of a DHCP server-assigned IP address

Users who don't log in to the network can't access network resources. To restart the login process, use the following steps in Windows:

1.
Click Start, Log Off (user).
2.
Re-enter or click (Windows XP only) the correct username and enter the correct password ...

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