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Originally Posted by erwin1978
What's the length limit for a cat5 cable? I made a straight-through cable which is more than 100' in length, possibly 200'. When I connect it to the PC and the router, the lights on the ethernet card and the router turns on like it should, but I can't gain access to the router's setup page. I'm guessing it's because the cable is too long and that the integrity of the signal is weakend due to the length. I made another cable of length 6' and everything worked fine.
Also, when I crimped a straight-through cable with all 8 wires and connect it to the PC and router one way, the light on the router blinks while the ethernet card doesn't light up at all.
If I only use #1,2,3, and 6 wires, the lights turn on solid for the both ethernet card and router. I don't think it should make a difference if I use the 4 or all 8 wires; why does it?
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Like Zeradul said, in theory you can make CAT5 cables up to 100 metres in length. In practice, you can go as long as you like, but there's a much greater chance of error / failure in longer cabling.
Have you tried using the cable with something else, as in not for the router? Or, even better yet, have you got a cable tester where you can test the cable?