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Troubleshooting Your Network. Networking for Home and Small Businesses – Chapter 9. Objectives. Describe the troubleshooting process. Describe the utilities used to verify TCP/IP connectivity. Identify and describe common hardware and connection issues in wired and wireless networks.

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Troubleshooting your network

Troubleshooting Your Network

Networking for Home and Small Businesses – Chapter 9


Objectives
Objectives

  • Describe the troubleshooting process.

  • Describe the utilities used to verify TCP/IP connectivity.

  • Identify and describe common hardware and connection issues in wired and wireless networks.

  • Utilize the troubleshooting process to document problems and interact with a help desk.


The troubleshooting process
The Troubleshooting Process

  • Identify and describe troubleshooting process


The troubleshooting process1
The Troubleshooting Process

  • Gathering Information


Approaches
Approaches

  • There are several different structured troubleshooting techniques available, including:

    • Top-down

    • Bottom-up

    • Divide-and-conquer





The troubleshooting process2
The Troubleshooting Process

Describe approaches to troubleshooting

  • Trial and Error

  • Substitution


Utilities used to verify tcp ip connectivity
Utilities Used to Verify TCP/IP Connectivity

Detecting Physical problems

  • A large proportion of networking problems are related to physical components or problems with the physical layer.


Utilities used to verify tcp ip connectivity1
Utilities Used to Verify TCP/IP Connectivity

  • Identify and describe software utilities for troubleshooting connectivity -


Utilities used to verify tcp ip connectivity2
Utilities Used to Verify TCP/IP Connectivity

  • Identify and describe software utilities for troubleshooting connectivity -


Utilities used to verify tcp ip connectivity3
Utilities Used to Verify TCP/IP Connectivity

  • Identify and describe software utilities for troubleshooting connectivity -








Hardware and connection issues in wired wireless networks1
Hardware and Connection Issues in Wired & Wireless Networks

  • Describe the purpose of LED indicators and their meaning.


Hardware and connection issues in wired wireless networks2
Hardware and Connection Issues in Wired & Wireless Networks

  • Describe connection issues with wired networks.


Hardware and connection issues in wired wireless networks3
Hardware and Connection Issues in Wired & Wireless Networks

  • Identify and describe radio issues with a wireless network.


Hardware and connection issues in wired wireless networks4
Hardware and Connection Issues in Wired & Wireless Networks

  • Identify and describe association and authentication issues within a wireless network.

Encryption is the process of altering the data so that it is not usable by anyone without the proper encryption key. If encryption is enabled, the same encryption key must be configured on both the AP and the client. If the client associates with the AP but can not send or receive data, the encryption key may be the issue.



Hardware and connection issues in wired wireless networks6
Hardware and Connection Issues in Wired & Wireless Networks

  • Troubleshooting Integrated Router to ISP connections.


Utilizing the troubleshooting process for documentation and help desk interactions
Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions

  • Describe the importance of documentation


Utilizing the troubleshooting process for documentation and help desk interactions1
Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions

  • Using outside sources of help


Utilizing the troubleshooting process for documentation and help desk interactions2
Utilizing the Troubleshooting Process for Documentation and Help Desk Interactions

  • Using the Helpdesk


Summary
Summary Help Desk Interactions

  • Effective troubleshooting combines instinct, experience, and structured techniques to identify, locate, and correct network or computer problems.

  • Documentation is essential in effective troubleshooting, and should contain baseline information about the network.

  • A large proportion of networking problems relate to physical components.

  • Many networking problems can be identified with software utilities such as ping, tracert, and netstat.

  • In a network containing both wired and wireless connections, it is important to isolate the problem to either the wired or wireless network.


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