Troubleshooting Internet Connectivity Chapter 12 Prepared by:

Chapter 12
Troubleshooting Internet
Connectivity
Prepared by:
Khurram N. Shamsi
What is Internet?

Internet is a global
throughout the world.
network
spread

It is also called network of networks as more
than 40 million networks are connected with
the Internet.
Requirements to set up Internet on a PC








Computer (laptop, desktop, tablet PC)
Communication media
MODEM
Network Interface Card (NIC) (LAN card or
Ethernet card)
Switching Devices (switches, HUBS)
Software (TCP/IP)
Browser such as Internet Explorer
Internet Service Provider (ISP) such as STC, Mobily
Steps to set up Internet connection using a
telephone line






Open Internet options in control panel.
On the connections tab, click setup.
Follow the on-screen instructions.
Provide the ISP’s telephone number,
username and password.
Name the connection.
Dial the number provided by your ISP. You
will be connected to the internet.
Possible problems
connection





with
an
Internet
The server is not functioning correctly.
The server has been temporarily removed
from the Internet.
Your internet browser is not configured
correctly.
The TCP/IP configuration for your dial-up
connection to your ISP is incorrect.
Your ISP’s Domain Name Service (DNS)
server is not working correctly.
Troubleshoot
Connection
Broadband
Internet
Check the Wires



Make sure the cable is connected securely
If you use a router, check those connections too
Power Cycling


Power Cycling means turning your modem off,
waiting a few seconds, then turning it on again.
Weathering Storms
Connections



with
Satellite
Internet
Check if there is something in between the dish and
satellite such as snow or greenery.
Check the alignment of the dish so that it properly
faces the satellite.
Troubleshoot
Connection
Broadband
Internet
Wireless Router Outages



Configuration problems
Security problems
More Cable and Configuration Problems




Part of your home network may involve cat5 or cat5e
Ethernet cables
Network configuration troubleshooting depends on
operating system
The problem might be with your ISP
Steps to change IP address for your DNS
server





In Control Panel, double-click Network connections
Right-click your Internet connection, click
properties, and then click the Networking tab
Click the Internet Protocol Adapter, and then click
Properties
Click Use the following DNS server address, and
then type the correct IP address in the Preferred
DNS server box
Click OK, and then click OK again
Suggested Websites

http://en.wikipedia.org/wiki/Internet

http://www.howstuffworks.com/internet/basics/whoowns-internet.htm

http://www.howstuffworks.com/internet/basics/internet.htm

http://support.microsoft.com/kb/314095

http://en.wikipedia.org/wiki/Internet_access