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I am making a ethernet cable (cat5) with crimp tool and raw ethernet cable. Can't get this to work! I have in this case aprox 25-30 meters of cable. I am now trying with two different qualities of cable, and none of them are working. The cables was ment for a IP-surveillance camera in a hotel. I had to give up, and send the signals thru homeplugs ( thru the electric system in the building ). Now I have these cables at home and want to use them in my home network, but I cant even get the internet signals from my modem to my computer with them. I am testing them with testing tool (diagnostic) and it shows that all 8 have contact. What is the problem? Many thanks

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  • deismac Sep 04, 2010

    It's not cross cables.

    I actually found the solution.

    I was thinking that it doesn't matter what colors in what position. But I learned that there are different resistance in the different colors. And I had to place them in the right order( white/orange, orange, white/green, blue, white/blue, green, white/brown, brown.

    At least, now the internet line is working with 100% speed with same cable that I had no signal with only 30 minutes ago. So I guess this was the problem...?

    Can you confirm this?

    Many Thanks!



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Your Modem Cable uses a different configuration

( uses Cross Cable ),

unlike the Cable for router ( Straight Cable ).

here is a link where you can get one:

To insure your success , have the Modem original cable

and connect it direct on your computer.

If you can connect and browse on the Internet , there is

no reason your Home made cable wont do.

( Normally speaking )

If you can browse on the Internet direct from the Modem

then it is time to connect the Router ( if you have one )

Modem to cross cable to Router then straight cable to

your computer.

If you can open your computer and it says your

computer IP address ( ipconfig ) is 169.254. X X X. X X X

it means you are not connected to the Internet,

although physically connected.

Posted on Sep 04, 2010

  • 2 more comments 
  • Rommel Cana
    Rommel Cana Sep 04, 2010

    you will know you are right , if you can browse on the Internet.

    you should also consider the length cause it affects resistance.

    ( Ohms Law )

  • Rommel Cana
    Rommel Cana Sep 04, 2010

    while you still can browse on the Internet, might as well note down in a safe place

    what IP address your computer is having, and if for instance you have a problem

    in the future these will be your guide.( you do not need to post it )

  • Rommel Cana
    Rommel Cana Sep 04, 2010

    sample image on the page

  • Rommel Cana
    Rommel Cana Sep 04, 2010

    and here are wiring diagrams to aid you in the future:



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