Casey Bralla on 4 Oct 2010 14:26:59 -0700

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Re: [PLUG] Networking Cat5e cable question....

2 thoughts come to mind:

1.  Bad RJ-45 plugs.  (They don't seat properly in the NIC socket.)  Try 
wiggling or putting pressure on them in the socket.
2.  Try making a short patch cable from a different box of cable.   I don't 
know what might be wrong with the first box, but at least it would isolate 
that part of the problem.

On Monday 04 October 2010 4:20:19 pm Mike Sheinberg wrote:
> I'm having some issues with a new box of 1000' cat5e cable and was
> wondering if anyone on here could provide some advice. I know this isn't
> exactly a Linux question but it's general networking and I figured it
> would be in the same ballpark for many of you :)
> Anywhoo, a lot of the patch cables I am making is failing to light up the
> 'link' lights when I plug them into various devices. I have made a couple
> successful ones that work but the majority of them are a huge headache and
> are not working. The weird part is we have two cat5 network cable testers
> here, both of them confirm that all my lines match up and that both ends of
> the cable are identical (one of the devices even gives me an accurate
> reading of the cable lengh). Still though I have issues plugging these into
> devices. At this point I'm wondering if there's something wrong with the
> cable, or wrong with the RJ45 end pieces, or a weird combination of both.
> Do Cat5e cables require a different rating/class/whatever of RJ45 ends
> than cat5 cables? I don't seem to have this issue when I'm making
> traditional cat5 patch cable...
> Thanks in advance for any pointers.
> -Mike


Casey Bralla
Chief Nerd in Residence
The NerdWorld Organisation
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