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How can I extend the length of an ethernet cable? Are there repeaters for ethernet cables or should I go with fibre or something else?

I have the following problem, the network connectivity stops to work randomly after 2 or 3 weeks, at first the DHPC pool wasn't configured properly but I double checked and it's configured properly now, I've configured the DLAN AP to forward the dhcp queries to the router.

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I have also tried to replace the HUB with a linksys switch but it's the same. Any ideas what could cause it to stop working randomly?

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  • How long is the cable? How long does it need to be? Which type of Ethernet is it (10Mbps, 100Mbps, GigE)? And what kind of cable is it (cat 5, cat 5e, cat 6)? May 4, 2016 at 10:21
  • mh okay if it can be up to 100 meters then this can't be the problem because it's like 50 meters May 4, 2016 at 10:26
  • Are you having trouble with a current cable? it could be damaged if you are. May 4, 2016 at 10:27
  • yea... kindof, it keeps stopping to work randomly after about 2 or 3 weeks May 4, 2016 at 10:28
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    What is weird is that it happens only every 2-3 weeks. The wireless clients have no problems? What about the PC directly connected to the hub? It could also be caused by a "bad" device - either the router or the hub. You could leave out the hub and connect the single PC directly with the 50 m cable and see if it still occurs.
    – TJJ
    May 4, 2016 at 10:59

1 Answer 1

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Ethernet cables can be up to 100 m. If you want to go beyond that length, you need some active hardware in between. A simple solution would be a cheap hub/switch. A simple ethernet repeater would do as well, but they are usually aimed at enterprises and thus probably more expensive than a simple hub.

EDIT: I see you added a diagram now and you are already using a hub. So I am revoking this as an answer.

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  • They are already using a HUB per their diagram. The only reason I won't issue a downvote is because the author changed their question to include a diagram only after your answer was submitted.
    – Ramhound
    May 4, 2016 at 12:31
  • @Ramhound: Exactly that is what happend.
    – TJJ
    May 4, 2016 at 12:43
  • I partly agree. I understood it as a more general question towards extending ethernet segments, and not as a problem with a specific setup.
    – TJJ
    May 4, 2016 at 12:49
  • Looking at the original question (again), I suppose in retrospect, you answered actual question that was asked. So I withdraw my secondary comment.
    – Ramhound
    May 4, 2016 at 12:52
  • Yea well it was my initial question so I'll mark it as accepted answer, it was a loose contact after all. At first I thought maybe the cable is too long! May 4, 2016 at 12:56

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