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