troubleshooting wireless networks

8/10/2019 Troubleshooting Wireless Networks

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B R I T I S H C O L U M B I A I N S T I U T E O F T E C H N O L O G Y

COMPUTER SYSTEMS TECHNOLOGY

Comp1111EssentialSkillsforComputingFinal

LAB INSTRUCTOR NAME: MATHEW LINDER

Set: 1C

Title:

Trouble Shoot Network Connection Problems

Team Members:

Student Name Student Id Email address

Student 1 Dhivya Manohar A00927659 [email protected]

Student 2 Jacky Tran A00925932 [email protected]

Student 3 Juven Ardine A00931159 [email protected]

Student 4 Duy Pham A00912376 [email protected]

Student 5 Johnny Marin A00890072 [email protected]
mailto:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]:[email protected]


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Table of ContentsIntroduction .............................................................................................................................................. 3

Hook: Why is it relevant? .......................................................................................................................... 3

Challenges ................................................................................................................................................. 3

Definitions ................................................................................................................................................. 3

Forgot network key ....................................................................................................................................... 4

What do you need? ................................................................................................................................... 4

Set-up the router ...................................................................................................................................... 4

Connect router to Internet ....................................................................................................................... 5

Connect Computer to Internet ................................................................................................................. 5

Choosing a wireless router........................................................................................................................ 6

Accessing webpage of most common routers .......................................................................................... 7

Troubleshooting slow internet connection................................................................................................... 8

Check and update your network adapter drivers ..................................................................................... 8

If youre using a wired connection, try modifying the flow control setting............................................. 8

Try turning off autotuning ........................................................................................................................ 8

Can't connect to a home network and ip address conflict solving ............................................................... 9

Cant connect to other computers or share files and printers on a home network................................... 14

Set sharing properties on the folder or printer you want to share ................................................ 17


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Introduction

Networks are an important part in technology and businesses now days. Unfortunately they are still

prone to problems. We are covering solutions to a variety of problems that may occur with a network

connection. Our goal is to deliver easy to follow step-by-step solutions for these problems. Due to lack

of time we will not be covering the entirety of problems that are possible, but we chose some common

issues that would be useful to know how to solve.

Hook: Why is it relevant?

We are currently taking the Computer Systems program at BCIT. It is almost assured that each student

will be dealing with networks whether at home, or at their work location. Knowledge in network

troubleshooting would not only be beneficial when dealing with networks themselves but they may be

able to provide support to others or businesses making them a better candidate for hire.

Challenges

Some of the main challenges was trying to balance our personal end of term work load with our final

project work load. It was difficult to find a time to get together and collaborate. Another challenge that

presented itself was trying to fit the information we wanted within the 1015 minute presentation,

including the live demo. We had to find out how much time each person would be able to speak without

going over the time limit.

Definitions

Router 1

o A networking device that forwards data packets between computer networks

WPA/WPA2 (Wi-Fi Protected Access)2

o

Security protocols and certification programs to secure wireless networks

WEP (Wired Equivalent Privacy)3o Not as secure as WPA/WPA2

o Provide data confidentiality same as a wired network

WAN/WLAN/LAN

o

LAN - Local Area Network (computers in your house networked together)

o

WLAN - Wireless Local Area Network (computers in your house networked together

without a cable)

o

WAN - Wide Area Network (eg. connection to your ISP)

WCN

o Wireless Connect Now

o Easy router Set-Up for Windows 7 and Windows Vista

Ethernet Cable

1http://en.wikipedia.org/wiki/Router_%28computing%29

2http://en.wikipedia.org/wiki/Wi-Fi_Protected_Access

3http://en.wikipedia.org/wiki/Wired_Equivalent_Privacy
http://en.wikipedia.org/wiki/Router_%28computing%29http://en.wikipedia.org/wiki/Router_%28computing%29http://en.wikipedia.org/wiki/Router_%28computing%29http://en.wikipedia.org/wiki/Wi-Fi_Protected_Accesshttp://en.wikipedia.org/wiki/Wi-Fi_Protected_Accesshttp://en.wikipedia.org/wiki/Wi-Fi_Protected_Accesshttp://en.wikipedia.org/wiki/Wired_Equivalent_Privacyhttp://en.wikipedia.org/wiki/Wired_Equivalent_Privacyhttp://en.wikipedia.org/wiki/Wired_Equivalent_Privacyhttp://en.wikipedia.org/wiki/Wired_Equivalent_Privacyhttp://en.wikipedia.org/wiki/Wi-Fi_Protected_Accesshttp://en.wikipedia.org/wiki/Router_%28computing%29


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SSID (Service set identifier)4

o case sensitive, 32 alphanumericcharacterunique identifier attached to

theheaderofpacketssent over a wireless local-area network (WLAN)that acts as a

password when a mobile device tries to connect to the basic service set

Forgot network key

What do you need?

A wireless router (Choosing a wireless router)

A computer that has a wireless network adapter

A computer that has a wired network adapter (only for set-up)

A network (Ethernet) cable (only for set-up)

Set-up the router

WCN(Ifdevicehaswindows7logo)

Plug device into power source (No need to physically connect to computer)

Open Connect to a Network (by clicking or )

Click the default network of your router (identified in manufacturer name) on the list that appears

Follow instructions on your screen that appear

WithoutWCN

1)

Plug device into power source

2)

Connect one end of network cable to computers wired network adapter

4http://www.webopedia.com/TERM/S/SSID.html
http://www.webopedia.com/TERM/C/character.htmlhttp://www.webopedia.com/TERM/C/character.htmlhttp://www.webopedia.com/TERM/C/character.htmlhttp://www.webopedia.com/TERM/H/header.htmlhttp://www.webopedia.com/TERM/H/header.htmlhttp://www.webopedia.com/TERM/H/header.htmlhttp://www.webopedia.com/TERM/P/packet.htmlhttp://www.webopedia.com/TERM/P/packet.htmlhttp://www.webopedia.com/TERM/P/packet.htmlhttp://www.webopedia.com/TERM/W/WLAN.htmlhttp://www.webopedia.com/TERM/W/WLAN.htmlhttp://www.webopedia.com/TERM/W/WLAN.htmlhttp://www.webopedia.com/TERM/S/SSID.htmlhttp://www.webopedia.com/TERM/S/SSID.htmlhttp://www.webopedia.com/TERM/S/SSID.htmlhttp://www.webopedia.com/TERM/S/SSID.htmlhttp://www.webopedia.com/TERM/W/WLAN.htmlhttp://www.webopedia.com/TERM/P/packet.htmlhttp://www.webopedia.com/TERM/H/header.htmlhttp://www.webopedia.com/TERM/C/character.html


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Choosing a wireless router

1)

Windows 7

a.

Get a windows 7 compatible device so that it supports WCN (easier set-up)

2)

Speed and Technology

a.

Consider 802.11gand 802.11n (

b.

These are more recent and works faster and more flexible

3)

Warranty

a.

Always choose the better warranty when choosing between two products

4)

Cost

a.

Choosing more expensive devices may be unnecessary sometimes as you wont need all

the features it includes

b.

Buy what you need

5)

Reviews

a.

Dont rush into buying anything. Always look at user reviews and compare it to your

own needs


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Accessing webpage of most common routers


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Troubleshooting slow internet connectionThere are times when your internet is really slow. If you are curious about your internet speed,

Speedtest.net is a really good site for testing your download and upload speed. First figure out what

maximum speed you are supposed to get. Run the speed test and if your download speed is 10 Megabit

per Second (mbps) or lower than your maximum speed your service provider provides, you have a

problem. If you are using wireless, it should be a problem relating to where you placed your router,

which includes interference from thick walls. Therefore you should move you router to the middle of the

house, so the wireless connection can reach your whole house. The best way to test your connection is

when you are connected to the internet through Ethernet. If you are using Ethernet, the problem may

not be always related to your internet service provider, so before calling them, try these steps and see if

it solves your problem.

Check and update your network adapter drivers

1.

Click start

2.

Search for Device Manager and open it

3.

Find and expand Network adapters

4.

Right click on your network card and click Properties

5.

Click Search automatically for updated driver software

If youre using a wired connection, try modifying the flow control setting.

1.

Click Start

2.

Search for Device Manager and open it

3.

Find and expand Network adapters

4.

Right click on your network card and click Update Driver Software

5.

Go to the Advanced tab6.

Find and make sure Flow Control is enabled

Try turning off autotuning

1.

Click Start

2.

Search for Command Prompt, right click and click Run as administrator

3.

Type netsh interface tcp set global autotuninglevel=disabled, and then press ENTER.

4.

Restart your computer

If none of the following solves the problem, contact your internet service provider. Your service provider

will help pinpoint and fix your internet connection. Sometimes slow internet is due to faulty internet

wires, modems, or routers. These problems cannot be fixed on your own, instead your internet service

provider should have the equipment to fix the problem.


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Can't connect to a home network and ip address conflict solving

Make sure the router and modem are turned on.

If you're using a laptop, make sure the wireless switch on the front, side, or back edge of the

laptop is turned on.

If Windows doesnt detect a network that you think is in range of yourcomputer, open Help andSupport and search for "Troubleshoot problems finding wireless networks."

Download and install the latest version of the network adapter driver from the manufacturer's

website.

Check IP settings configuration and wireless network configuration:

To do so, open control panel


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Open view network status and tasks

Click on change adapter settings


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Right click on the network adapter, and open properties


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Set the settings based on your preferences, in most cases, all this things are set automatically, since

most routers are DHCP enabled, you may wish to change your IP address from here if there is an ip

address conflict.


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Cant connect to other computers or share files and printers on a home

network

Make sure you connect to a network!

Make sure network discovery is turned on

Windows 7

Open Network and Sharing Center:

Open Advanced sharing settings


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Choose Current Profile

Turn on network discovery

Windows 8

Swipe in from the right edge of the screen, tap Settings, and then tap Change PC

settings.

Tap or click Network, tap or click Connections, and then tap or click your network

connection.


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Turn on Find devices and content.

Password protected sharing

o Create identical user accounts on all computers in the workgroup.

o Turn off password protected sharing (Not recommend)

Make sure the computer that you want to connect to has at least one shared folder

Make sure all computers are in the same workgroup

o Contact Network Administrator to setup workgroup for each computer


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Right-click to the printer that you want to share, then chose Sharingtab


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troubleshooting wireless networks

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