Having your internet working is not something complicated but we know from experience that sometimes, for reasons we cannot control, our internet speed is slow.
It is very useful before going crazy to have a list you can check to know what exactly is happening.
As you will understand from every post I write, I don’t like formatting computers to solve problems, for me a problem is just an opportunity to learn about computers. So of course you can always format; however, this will not solve every problem.
Check your cables
As amazing as it could seem most internet problems are due to a badconnection between your computer and the router. Remember to first check if the cable is connected properly and the network card shows an intermittent light. In Windows 7 you will see the following icon appearing from time to time.