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Troubleshooting

Troubleshooting is a real detective’s art, and it’s based more on methodical tracking down of potential suspect problems than intuition. Since a functioning computer and Internet connection depend on a whole chain of correctly functioning hardware and software components, if something goes wrong what you have to do is go through each in turn, asking “is this the component that’s causing the problem?”

To that end, Figures 13.1 and 13.2 show flowcharts to help direct you to the problem. The first chart is for dial-up connections to an ISP, and the second is for LAN connections. If you’re having Internet connection trouble, follow the appropriate flowchart. The endpoints in each flowchart suggest places to look for trouble. I’ll discuss these in the sections that follow.


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