Puzzling Connection Problem

R

RalphJolly

New Member
I have 5 connection points in my house, the network cable tester says all the t5 lines give a strong connection and yet none of my computers can connect to the internet on one outlet.
I've changed my modem, router and triple checked all the jacks and plugs that I wired up.
I can't logically see that there can be any problem with my pcs (though on a side note, and maybe just a complete coincidence but one of my pcs got fried while I tried to make this work -power supply failure I think)
I am out of ideas -wondering if I've missed anything obvious?
Maybe cable testers can give false positives?
I wired all the jacks up to B rather than A I can't remember why.

Any ideas / suggestions would be great.

Thanks!
 
Can you explain better how you wired them? And by B and A are you talking about T568A and T568B? The new standard is B. You say you have 5 connection points, where do they go to? Basement to a router/switch perhaps? So you have a cat 5 tester attached to each end of one cable and all 4 led's light up?
 
Thank you for the reply.
I have a comcast coax cable coming into the basement which goes into a comcast arris modem. The modem connects to a dlink router.
The house already has five T5 cables running into various rooms which were set up as phone lines but I have updated the jacks so they now take ethernet plugs.
I have a dual cable tester which I bought from Microcenter -can be used for ethernet or phone connections. It goes green, flashes green or goes red depending on the signal. On all my lines all the 8 green lights light up.
 
Maybe making sense here. So they were originally used for phone lines? Phone lines consist of Cat 3 wire, Internet requires cat 5 wire. If its cat 5 wire used then most likely you connected the wires wrong.
 
The lines I have are t5; they were just hooking up 2 of the wires -I cut off the jacks and hooked all 8 wires up to ethernet jacks.
I have re-examined the connections and plugs so many times but I am at the point where I might just cut the wires and do the jacks all over again because I have no other ideas.
What I don't know is whether a cable network connector would give me a positive result even if I had wired it wrongly? I assume not but this is a new area to me so I probably shouldn't be making assumptions.
Thanks for your input.
 
When you say t5, are you talking about about Cat 5 wiring? Each wire has to be terminated in the correct spot on the connector or you won't get a connection.
 
Yes I do mean cat 5 wiring.
When you say
"Each wire has to be terminated in the correct spot on the connector or you won't get a connection."
you just mean that the jack has to be wired correctly and all 8 wires pushed into place with the tool that has a C or U shaped head?
I will push all the wires into place one more time, but if I've misunderstood then please explain.
Thank you.
 
Have you crimped wires before? If not they are likely broked. For a straight through, each one needs to be in the same spot in both jacks. If not it likely won't work or you may end up with lower speeds/half duplex (eww)
 
What I don't understand is why my cable network tester is saying there is a strong signal. Could it say that even if I'd wired incorrectly?
& thought I think I've done a good job on the wiring (all the other connections are fine) but I will follow your advice.
I'll chop off the jacks and rewire them tomorrow.
Thanks!
 
Keep in mind the termination has to have a minimal amount of untwisting and be really tight in the jack to avoid negotiation or line errors.

What specific tester do you have? A lot of the cheap chinese wire map ones are kind of garbage-grade.
 
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