Convert RJ11 wiring to RJ45?

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thetortuga747

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Aug 31, 2014
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Hello,

I recently moved my PC to my room. I noticed that my house has a RJ11 wall outlets; one in my room, and one near our router. Would it be possible to run an ethernet connection through these outlets, so that I wouldn't have to use a WiFi booster? If possible, what adapter should I use?

Thanks a ton.
 
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What do you mean when you say RJ11 wiring as there is no such thing, RJ11 is the connector (registered jack standard), what actual cable is being used as Cat5 can be installed for telephones, in which case as long as the sockets aren't run in series as mentioned above it might be fine.
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nukemaster

nukemaster

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Nov 23, 2004
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HomePNA devices can work over phone lines, but Homeplug is another standard option that is more widely used.
http://www.homeplug.org/

Those devices may be called power line ethernet and other things and are sold all over now.

I have been able to run 100 megabit network over short distances of phone line(4 conductor and not twisted pairs make it pretty hard), but nothing too long without issues.
 
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bill001g

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Aug 9, 2012
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Your problem is not the jacks its is that rj11 is used for phone wiring. To use it for data it must first be the correct type of wire and much more important the wiring can not be daisy chained to all the jacks. If all the wires from all the jacks come back to one central location to be connected then you have a chance if the wire run from jack to jack directly you likely have no hope.
 
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ahnilated

ahnilated

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Nov 9, 2006
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You could but RJ11 cables aren't designed for high speeds that ethernet use. You may and I mean "may" be able to get 10Mb speeds through it. now if the house was built more recently they may have used cat 5 cables in the wall for the phone and you could get higher speeds but I doubt it.
 
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nigelivey

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Dec 6, 2011
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What do you mean when you say RJ11 wiring as there is no such thing, RJ11 is the connector (registered jack standard), what actual cable is being used as Cat5 can be installed for telephones, in which case as long as the sockets aren't run in series as mentioned above it might be fine.
 
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