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Friends and family often come to me with this problem, and while I usually manage to fix their problems eventually, it often take me several hours. I'm sure there are many of us in the same position.

Also, friends rarely seem to know which provider they're using, or what the password is of their WIFI-connection or ADSL-router. I'd like to gather that information myself.

I'd like to have a checklist to diagnose and fix the problem, and a set of utilities on an usb-stick to help me. Where to start?

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closed as not constructive by Ƭᴇcʜιᴇ007, Oliver Salzburg, David Schwartz, Mokubai, Nifle Jul 1 '12 at 5:16

As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, visit the help center for guidance.If this question can be reworded to fit the rules in the help center, please edit the question.

    
Questions here should try to follow the FAQ, and be able to be answered in a clear, concise manner. In order to do so, you should post questions that can be answered by experts, show research effort, and have as much detail as possible. –  Oliver Salzburg Jun 30 '12 at 20:09
    
This question can be concisely and clearly answered by experts. It also has as much detail as possible, which is not much, considering it concerns the general case. Questions also shouldn't be "too localized." Would you rather have me post the specific issues whenever I try to fix somebody's internet connection? I believe there are already too much of those questions on this site. –  Michiel de Mare Jun 30 '12 at 20:25
    
As it currently stands, this question is not a good fit for our Q&A format. We expect answers to be supported by facts, references, or specific expertise, but this question will likely solicit debate, arguments, polling, or extended discussion. If you feel that this question can be improved and possibly reopened, see the FAQ for guidance. –  Oliver Salzburg Jun 30 '12 at 20:28
    
It's a real question I have, and ten of thousands other hobbyists, it's on topic for superuser, and I've never find a decent answer anywhere online. So where else should I take this question but here? –  Michiel de Mare Jun 30 '12 at 21:06
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From our FAQ: "Your questions should be reasonably scoped. If you can imagine an entire book that answers your question, you’re asking too much.". –  Oliver Salzburg Jun 30 '12 at 21:12