Question about Linksys EtherFast Cable/DSL Router

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Hub / wall connections

My modem is connected to my router. The router then is connected to my hub. I have a linksys 5 port workgroup hub. ALL OF THIS WORKS. I can put a cables off the hub to my 2 computers and all works too. The problem.... We wired our office so we did not need a cable running from one end to the other across the floor. The in wall connections all test good. However when we connect the hub to the wall jack and try to get signal on the other end of the office, it does not work. I've been told by two computer people it should. What are we doing wrong? We even took the in connection at the wall from the router and jumped it straight into the other wall connection and it does produce signal at the other end of the office. Cannot a hub send the signal to the other end of the office?

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  • gilliganpc May 20, 2009

    The cable between the 2 connections is 18-20 ft. I ran a 40 ft. patch cord across the floor and it works fine from the hub to the computer directly. The router to the hub is approx. 120 ft. It's worked fine for years. The main issue is that I cannot plug a patch cord from the hub into the wall jack and get connection at the other wall jack at the other side of the office.

    What is strange, it tested out fine with the electricans equipment and when he jumped the in connection from the router to the wall jack right next to it, the wall jack were trying to get to work at the other end of the office worked fine.

  • gilliganpc May 20, 2009

    I will definetly double check that.

    I've got two jacks on one wall (one coming into the office from the router (jack #1). The patch cable from this jack then plugs into my uplink on my hub. The other jack (jack #2) right beside this one gets a patch cable from my hub and then I'm supposed to recieve signal at the other end of my office (Jack #3)

    The electrican ran a jumper cable between jack # 1 and Jack #2 (bi-passing the hub) and Jack #3 then worked.

  •  C. Dante
    C. Dante May 11, 2010

    How long is the cable between the two connections?
    And then: what is the total distance between router and computer (on the other floor)?

    If this is more than 100 meters (roughly 330 ft) you might need a repeater between the two outlets.



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OK - I'm trying to visualize your setup...interesting!

My thoughts:

  1. The patch cable the electrician used is the same one you are using to connect to your hub?
    In other words: You checked the cables and they are all working fine?
  2. You are sure the hub is working?
It has to be either the hub or one of the cables. It looks like you are not exceeding the total length of UTP-5 (330ft).

Test all involved patch cables either with a cable tester or by plugging in a computer and see if there are any problems. amke sure the patch cables are "straight through", either 568A or 568B identical on both ends of the cable.

Hub / wall connections - f18ffbf.gif

Do you have the chance to use another hub or switch for testing purposes?

Just come back here and leave a comment with your findings - I'm happy to help.

Posted on May 20, 2009

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The key is "it tested fine with the electrician". Yeah, how is it wired?

Category cabling has a specific order that the wires go in. You can pick any combination of wires you want, but the ones that work are pairs of 54 12 36 and 78, on both ends.

Get someone to test it with a DATA tester and I'll bet you find the problem.


Posted on May 20, 2009

  • Carl Navarro
    Carl Navarro May 20, 2009

    When you say "uplink" do you mean the 6th port on a 5-port switch? Why did you plug in there? Put it in port 5, and plug a PC into 1 and the other patch cord from port 2-4 into the wall and see if it works at the distant end. The "uplink" port is seldom used today because modern hubs have auto-snese ports. If it works straight through, you don't need an "uplinnk" port.



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