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I have problem with cat5 cabling

First I ran a length of cable 30 metres to my bedroom 1 and and connected both ends to a wall sockets internally using my punch down tool, both ends look fine. I also ran a cable from bedroom 1 to bedroom 2 so my son can use same internet connection , i then parallel connected my cables in bedroom 1 against using punch down tool using same colours all the way through. I ran a Ethernet cable from modem to first wall socket close to it then at bedroom end used another Ethernet cable to connect pc, it wouldn't connect to pc so I disconnected bedroom 2 cable from bedroom 1 socket. I connected bedroom 1 to pc and it worked, but how do I connect bedroom 2 (obviously cat 5 cable bedroom 1 to 2 is in place) As soon as I connect one wire from bedroom2 I loose Internet connection!

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closed as off topic by petrus, Michael Hampton, Lucas Kauffman, Sven, MDMarra Nov 18 '12 at 20:45

Questions on Server Fault are expected to relate to server, networking, or related infrastructure administration within the scope defined by the community. Consider editing the question or leaving comments for improvement if you believe the question can be reworded to fit within the scope. Read more about reopening questions here.If this question can be reworded to fit the rules in the help center, please edit the question.

Hi Mike. Please check the FAQ, especially the part where it mentions 'it is not about anything in a home setting`. Your question may be on-topic in another place, but please check their FAQ first. (e.g. – Hennes Nov 18 '12 at 20:17
Belongs either over in Superuser or DIY and some sort of circuit diagram would be really helpful. Word problems get really annoying. – Fiasco Labs Nov 18 '12 at 20:20
Ethernet just doesn't work that way. – David Schwartz Nov 18 '12 at 23:06

i then parallel connected my cables in bedroom 1 against using punch down tool using same colours all the way through.

You need a network switch. Ethernet can't share the physical layer in the way that you are describing. Since you aren't just trying to network multiple computers, but also share Internet access, a router with integrated switch would be ideal.

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