Can i use RJ45 ethernet splitter as second contection to my pc? The 2019 Stack Overflow...

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Can i use RJ45 ethernet splitter as second contection to my pc?



The 2019 Stack Overflow Developer Survey Results Are InCan I use Beetel 450TC1 as wireless router?Use a PC as a one client router/switchWhat kind of router will deal with RJ45 as internet sourceCaptioning Phone- Ethernet Splitter or SwitchCAT6 RJ45 - Unidentified NetworkHow can I connect an ADSL router (rj11) to another load balance router (rj45) ?home network wall socket ethernet not connectedInternet stops working after connecting an ethernet cableHome Ethernet - Connecting a second router to extend wifiGetting only 100mb from isp and using 10 gigabit router





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I have a router and laptop but when my parents turn off router I will not receive the internet, so I decided to use RJ45 as the second connection. You can see how I imagined it in the picture. So, I interested before buying it will it actually work? When the router on I have internet, when the router is off I still have internet. Will this work?



The picture!










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  • 1





    Cause they’ll never notice a second line? Seems like a bad idea. No one with WiFi nearby you could leach off of?

    – UnhandledExcepSean
    2 days ago











  • This is a very bad idea as, even if it works, which is unlikely, you are bypassing protections the router provides and allowing anyone on the internet to access your laptop. Do not attempt to do this.

    – StarNamer
    2 days ago











  • @StarNamer: Fortunately, Windows comes with a built-in firewall blocking all incoming connections. (Which I'm sure nobody ever disables.)

    – grawity
    yesterday


















0















I have a router and laptop but when my parents turn off router I will not receive the internet, so I decided to use RJ45 as the second connection. You can see how I imagined it in the picture. So, I interested before buying it will it actually work? When the router on I have internet, when the router is off I still have internet. Will this work?



The picture!










share|improve this question









New contributor




Temporaly is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
















  • 1





    Cause they’ll never notice a second line? Seems like a bad idea. No one with WiFi nearby you could leach off of?

    – UnhandledExcepSean
    2 days ago











  • This is a very bad idea as, even if it works, which is unlikely, you are bypassing protections the router provides and allowing anyone on the internet to access your laptop. Do not attempt to do this.

    – StarNamer
    2 days ago











  • @StarNamer: Fortunately, Windows comes with a built-in firewall blocking all incoming connections. (Which I'm sure nobody ever disables.)

    – grawity
    yesterday














0












0








0








I have a router and laptop but when my parents turn off router I will not receive the internet, so I decided to use RJ45 as the second connection. You can see how I imagined it in the picture. So, I interested before buying it will it actually work? When the router on I have internet, when the router is off I still have internet. Will this work?



The picture!










share|improve this question









New contributor




Temporaly is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.












I have a router and laptop but when my parents turn off router I will not receive the internet, so I decided to use RJ45 as the second connection. You can see how I imagined it in the picture. So, I interested before buying it will it actually work? When the router on I have internet, when the router is off I still have internet. Will this work?



The picture!







router ethernet splitter rj-45






share|improve this question









New contributor




Temporaly is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
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share|improve this question









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Check out our Code of Conduct.









share|improve this question




share|improve this question








edited 2 days ago









Attie

13.3k43648




13.3k43648






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asked 2 days ago









TemporalyTemporaly

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81




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  • 1





    Cause they’ll never notice a second line? Seems like a bad idea. No one with WiFi nearby you could leach off of?

    – UnhandledExcepSean
    2 days ago











  • This is a very bad idea as, even if it works, which is unlikely, you are bypassing protections the router provides and allowing anyone on the internet to access your laptop. Do not attempt to do this.

    – StarNamer
    2 days ago











  • @StarNamer: Fortunately, Windows comes with a built-in firewall blocking all incoming connections. (Which I'm sure nobody ever disables.)

    – grawity
    yesterday














  • 1





    Cause they’ll never notice a second line? Seems like a bad idea. No one with WiFi nearby you could leach off of?

    – UnhandledExcepSean
    2 days ago











  • This is a very bad idea as, even if it works, which is unlikely, you are bypassing protections the router provides and allowing anyone on the internet to access your laptop. Do not attempt to do this.

    – StarNamer
    2 days ago











  • @StarNamer: Fortunately, Windows comes with a built-in firewall blocking all incoming connections. (Which I'm sure nobody ever disables.)

    – grawity
    yesterday








1




1





Cause they’ll never notice a second line? Seems like a bad idea. No one with WiFi nearby you could leach off of?

– UnhandledExcepSean
2 days ago





Cause they’ll never notice a second line? Seems like a bad idea. No one with WiFi nearby you could leach off of?

– UnhandledExcepSean
2 days ago













This is a very bad idea as, even if it works, which is unlikely, you are bypassing protections the router provides and allowing anyone on the internet to access your laptop. Do not attempt to do this.

– StarNamer
2 days ago





This is a very bad idea as, even if it works, which is unlikely, you are bypassing protections the router provides and allowing anyone on the internet to access your laptop. Do not attempt to do this.

– StarNamer
2 days ago













@StarNamer: Fortunately, Windows comes with a built-in firewall blocking all incoming connections. (Which I'm sure nobody ever disables.)

– grawity
yesterday





@StarNamer: Fortunately, Windows comes with a built-in firewall blocking all incoming connections. (Which I'm sure nobody ever disables.)

– grawity
yesterday










3 Answers
3






active

oldest

votes


















2














No, it would not work. Usually those splitters/combiners are used for combining two 100Mbit Ethernet links via one CAT cable and splitting it to two links again. It won't split your internet connection.






share|improve this answer
























  • The ones I have seen allow the connection to split, but both lines can’t be used at the same time

    – UnhandledExcepSean
    2 days ago



















1














No, this categorically will not work.



Besides.... presumably your parents are turning off the router for a reason? Perhaps discussing it with them would be a better idea.





These adapters come in a number of different variants, with different internal wiring. They are typically used to allow two connections via a single 4-pair Category cable (i.e CAT 5e)



Typically:




  • 2x Computers

  • 1x PC + 1x Phone (POTS)

  • 2x Phones


If you purchased the correct variant, you could use two of the router's LAN ports to service two computers via a single cable at up to 100 Mbit/s.



There are also variants around that will electrically connect the signals onto all ports... but they are fundamentally flawed when discussing Ethernet.



It is not possible to "split" or "join" an Ethernet (or possibly even DSL / Cable) connection like this.






share|improve this answer

































    0














    Besides that, usually the WAN port needs PPoE (or other authentication method) AND VLAN tagging to work properly. Values are usually preconfigured on the routers your ISP provides, but you would have to do this manually on your computer in order to work, even if you connect it directly without the splitter.



    Just... tell your parents not to turn off the router. Power consumption of a modern router is quite low (arround 10-15W on low end devices), turning it off 12h/day barely makes a 1$/1€ savings per month. If that is still a concern, just turn off the wifi instead of the whole router. The cabled switch's power consumption is very low.






    share|improve this answer
























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      3 Answers
      3






      active

      oldest

      votes








      3 Answers
      3






      active

      oldest

      votes









      active

      oldest

      votes






      active

      oldest

      votes









      2














      No, it would not work. Usually those splitters/combiners are used for combining two 100Mbit Ethernet links via one CAT cable and splitting it to two links again. It won't split your internet connection.






      share|improve this answer
























      • The ones I have seen allow the connection to split, but both lines can’t be used at the same time

        – UnhandledExcepSean
        2 days ago
















      2














      No, it would not work. Usually those splitters/combiners are used for combining two 100Mbit Ethernet links via one CAT cable and splitting it to two links again. It won't split your internet connection.






      share|improve this answer
























      • The ones I have seen allow the connection to split, but both lines can’t be used at the same time

        – UnhandledExcepSean
        2 days ago














      2












      2








      2







      No, it would not work. Usually those splitters/combiners are used for combining two 100Mbit Ethernet links via one CAT cable and splitting it to two links again. It won't split your internet connection.






      share|improve this answer













      No, it would not work. Usually those splitters/combiners are used for combining two 100Mbit Ethernet links via one CAT cable and splitting it to two links again. It won't split your internet connection.







      share|improve this answer












      share|improve this answer



      share|improve this answer










      answered 2 days ago









      JustmeJustme

      1361




      1361













      • The ones I have seen allow the connection to split, but both lines can’t be used at the same time

        – UnhandledExcepSean
        2 days ago



















      • The ones I have seen allow the connection to split, but both lines can’t be used at the same time

        – UnhandledExcepSean
        2 days ago

















      The ones I have seen allow the connection to split, but both lines can’t be used at the same time

      – UnhandledExcepSean
      2 days ago





      The ones I have seen allow the connection to split, but both lines can’t be used at the same time

      – UnhandledExcepSean
      2 days ago













      1














      No, this categorically will not work.



      Besides.... presumably your parents are turning off the router for a reason? Perhaps discussing it with them would be a better idea.





      These adapters come in a number of different variants, with different internal wiring. They are typically used to allow two connections via a single 4-pair Category cable (i.e CAT 5e)



      Typically:




      • 2x Computers

      • 1x PC + 1x Phone (POTS)

      • 2x Phones


      If you purchased the correct variant, you could use two of the router's LAN ports to service two computers via a single cable at up to 100 Mbit/s.



      There are also variants around that will electrically connect the signals onto all ports... but they are fundamentally flawed when discussing Ethernet.



      It is not possible to "split" or "join" an Ethernet (or possibly even DSL / Cable) connection like this.






      share|improve this answer






























        1














        No, this categorically will not work.



        Besides.... presumably your parents are turning off the router for a reason? Perhaps discussing it with them would be a better idea.





        These adapters come in a number of different variants, with different internal wiring. They are typically used to allow two connections via a single 4-pair Category cable (i.e CAT 5e)



        Typically:




        • 2x Computers

        • 1x PC + 1x Phone (POTS)

        • 2x Phones


        If you purchased the correct variant, you could use two of the router's LAN ports to service two computers via a single cable at up to 100 Mbit/s.



        There are also variants around that will electrically connect the signals onto all ports... but they are fundamentally flawed when discussing Ethernet.



        It is not possible to "split" or "join" an Ethernet (or possibly even DSL / Cable) connection like this.






        share|improve this answer




























          1












          1








          1







          No, this categorically will not work.



          Besides.... presumably your parents are turning off the router for a reason? Perhaps discussing it with them would be a better idea.





          These adapters come in a number of different variants, with different internal wiring. They are typically used to allow two connections via a single 4-pair Category cable (i.e CAT 5e)



          Typically:




          • 2x Computers

          • 1x PC + 1x Phone (POTS)

          • 2x Phones


          If you purchased the correct variant, you could use two of the router's LAN ports to service two computers via a single cable at up to 100 Mbit/s.



          There are also variants around that will electrically connect the signals onto all ports... but they are fundamentally flawed when discussing Ethernet.



          It is not possible to "split" or "join" an Ethernet (or possibly even DSL / Cable) connection like this.






          share|improve this answer















          No, this categorically will not work.



          Besides.... presumably your parents are turning off the router for a reason? Perhaps discussing it with them would be a better idea.





          These adapters come in a number of different variants, with different internal wiring. They are typically used to allow two connections via a single 4-pair Category cable (i.e CAT 5e)



          Typically:




          • 2x Computers

          • 1x PC + 1x Phone (POTS)

          • 2x Phones


          If you purchased the correct variant, you could use two of the router's LAN ports to service two computers via a single cable at up to 100 Mbit/s.



          There are also variants around that will electrically connect the signals onto all ports... but they are fundamentally flawed when discussing Ethernet.



          It is not possible to "split" or "join" an Ethernet (or possibly even DSL / Cable) connection like this.







          share|improve this answer














          share|improve this answer



          share|improve this answer








          edited 2 days ago

























          answered 2 days ago









          AttieAttie

          13.3k43648




          13.3k43648























              0














              Besides that, usually the WAN port needs PPoE (or other authentication method) AND VLAN tagging to work properly. Values are usually preconfigured on the routers your ISP provides, but you would have to do this manually on your computer in order to work, even if you connect it directly without the splitter.



              Just... tell your parents not to turn off the router. Power consumption of a modern router is quite low (arround 10-15W on low end devices), turning it off 12h/day barely makes a 1$/1€ savings per month. If that is still a concern, just turn off the wifi instead of the whole router. The cabled switch's power consumption is very low.






              share|improve this answer




























                0














                Besides that, usually the WAN port needs PPoE (or other authentication method) AND VLAN tagging to work properly. Values are usually preconfigured on the routers your ISP provides, but you would have to do this manually on your computer in order to work, even if you connect it directly without the splitter.



                Just... tell your parents not to turn off the router. Power consumption of a modern router is quite low (arround 10-15W on low end devices), turning it off 12h/day barely makes a 1$/1€ savings per month. If that is still a concern, just turn off the wifi instead of the whole router. The cabled switch's power consumption is very low.






                share|improve this answer


























                  0












                  0








                  0







                  Besides that, usually the WAN port needs PPoE (or other authentication method) AND VLAN tagging to work properly. Values are usually preconfigured on the routers your ISP provides, but you would have to do this manually on your computer in order to work, even if you connect it directly without the splitter.



                  Just... tell your parents not to turn off the router. Power consumption of a modern router is quite low (arround 10-15W on low end devices), turning it off 12h/day barely makes a 1$/1€ savings per month. If that is still a concern, just turn off the wifi instead of the whole router. The cabled switch's power consumption is very low.






                  share|improve this answer













                  Besides that, usually the WAN port needs PPoE (or other authentication method) AND VLAN tagging to work properly. Values are usually preconfigured on the routers your ISP provides, but you would have to do this manually on your computer in order to work, even if you connect it directly without the splitter.



                  Just... tell your parents not to turn off the router. Power consumption of a modern router is quite low (arround 10-15W on low end devices), turning it off 12h/day barely makes a 1$/1€ savings per month. If that is still a concern, just turn off the wifi instead of the whole router. The cabled switch's power consumption is very low.







                  share|improve this answer












                  share|improve this answer



                  share|improve this answer










                  answered 2 days ago









                  IgbIgb

                  40827




                  40827






















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