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Author Topic: Can I Use 2 Wifi Routers together?  (Read 8429 times)

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Can I Use 2 Wifi Routers together?
« on: March 09, 2011, 03:52:43 PM »
Basically I've got two Wireless routers handy and poor signal at the opposite end of my house. Can I set up the routers to broadcast the same domain name and internet connection or will that just cause a conflict reducing reliability and signal strength?


Converting this question into English: "Can I use two wifi routers in tandem?"
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Re: Can I Use 2 Wifi Routers together?
« Reply #1 on: March 10, 2011, 02:48:51 AM »
Yes.
The ideal way is to have the two routers directly connected via cable.

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    Re: Can I Use 2 Wifi Routers together?
    « Reply #2 on: March 10, 2011, 05:16:27 AM »
    Depending on the makes / models, you can do some pretty clever stuff.

    I do exactly what you're talking about using 2 x Netgear DG834G's using the Advanced Wireless features, without a cable running between them.

    With that said though, it's only a small house, and both routers have to be in range of each other for this to work.

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    Re: Can I Use 2 Wifi Routers together?
    « Reply #3 on: March 11, 2011, 01:37:12 AM »
    Awesome, so If I connect the two routers together via cable (old one used to be connect up to a basic cable modem anyway) and set the same domain name, password and channel to match it should work?
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      Re: Can I Use 2 Wifi Routers together?
      « Reply #4 on: March 11, 2011, 02:05:11 AM »
      Awesome, so If I connect the two routers together via cable (old one used to be connect up to a basic cable modem anyway) and set the same domain name, password and channel to match it should work?

      The cable will need to be an ethernet cable (assuming both routers also have at least one ethernet cable), but yeah, it should work.

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      Re: Can I Use 2 Wifi Routers together?
      « Reply #5 on: March 11, 2011, 12:04:01 PM »
      The cable will need to be an ethernet cable (assuming both routers also have at least one ethernet cable), but yeah, it should work.

      I can't use a serial cable then? j/k
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        Re: Can I Use 2 Wifi Routers together?
        « Reply #6 on: March 12, 2011, 10:10:31 AM »
        I can't use a serial cable then? j/k

        In another thread someone tried to use the dsl cable between two routers, so since then I've tried to be a bit clearer, sorry about that :)

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        Re: Can I Use 2 Wifi Routers together?
        « Reply #7 on: March 12, 2011, 01:53:48 PM »
        Ok, I now have a unified domain name, 802.11gn wifi with no where being below excellent signal strength. But I'm getting different network speeds:

        On the directly wired computer (LAN) I get ~31Mbps
        On the laptop next to the routers I get ~5Mbps
        On the furthest computer from the routers I get ~19Mbps

        So Direct = 31Mbps
        5ft = 5Mbps
        15ft = 19Mbps

        What am I doing wrong?
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        Re: Can I Use 2 Wifi Routers together?
        « Reply #8 on: March 12, 2011, 03:11:34 PM »
        Small addition: I have now set my network to g to normalise connection speeds but that reduces the signal strength. My old router is only capable of b & g btw.

        (It appears that g has a limit of 20Mbps if i'm reading wikipedia correclty.)
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          Re: Can I Use 2 Wifi Routers together?
          « Reply #9 on: March 12, 2011, 06:05:32 PM »
          Small addition: I have now set my network to g to normalise connection speeds but that reduces the signal strength. My old router is only capable of b & g btw.

          (It appears that g has a limit of 20Mbps if i'm reading wikipedia correclty.)

          B = 11Mbps
          G = 54Mbps (but any encryption will eat into that)

          When you say domain name, do you mean the wireless SSID (network name)?

          How did you get the speeds?

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          Re: Can I Use 2 Wifi Routers together?
          « Reply #10 on: March 13, 2011, 03:24:39 AM »
          Sorry, yes I mean SSID and my listed speeds are from testing various computers on speedtest.net (so their internet connection speeds).
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            Re: Can I Use 2 Wifi Routers together?
            « Reply #11 on: March 13, 2011, 10:41:32 AM »
            Sorry, yes I mean SSID and my listed speeds are from testing various computers on speedtest.net (so their internet connection speeds).

            31Mbps download speed?! Woah...that's insane.

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            Re: Can I Use 2 Wifi Routers together?
            « Reply #12 on: March 13, 2011, 11:05:37 AM »
            31Mbps download speed?! Woah...that's insane.

            Yeah, it was a one off payment upgrade from 20. I did have the option of 50 for an extra monthly fee but what do i need it for?

            So... Any ideas on how to pump that speed down a wifi connection?
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              Re: Can I Use 2 Wifi Routers together?
              « Reply #13 on: March 13, 2011, 01:32:44 PM »
              Yeah, it was a one off payment upgrade from 20. I did have the option of 50 for an extra monthly fee but what do i need it for?

              So... Any ideas on how to pump that speed down a wifi connection?

              So you've got three different computers all registering different speeds...

              Ok, can you run speed tests on each one in isolation (so no other internet activity on the LAN (i.e. one at a time))?

              Have you got any wifi analysing tools?  It might be worth seeing what channels you're using, and if there are any clearer channels (if there are lots of wifi networks around).


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                Re: Can I Use 2 Wifi Routers together?
                « Reply #14 on: March 13, 2011, 03:50:57 PM »
                So you've got three different computers all registering different speeds...

                Ok, can you run speed tests on each one in isolation (so no other internet activity on the LAN (i.e. one at a time))?

                Have you got any wifi analysing tools?  It might be worth seeing what channels you're using, and if there are any clearer channels (if there are lots of wifi networks around).

                I couldn't modify for some reason, so take a look at this:

                http://www.metageek.net/products/inssider/

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                Re: Can I Use 2 Wifi Routers together?
                « Reply #15 on: March 14, 2011, 01:15:20 AM »
                So you've got three different computers all registering different speeds...

                Ok, can you run speed tests on each one in isolation (so no other internet activity on the LAN (i.e. one at a time))?

                Have you got any wifi analysing tools?  It might be worth seeing what channels you're using, and if there are any clearer channels (if there are lots of wifi networks around).

                They all register the same speed once I switched both routers to g. Also for the time being I've gone back to my old setup of just the old router (new router still available once I work out what to do with it).

                Yes, that's what I did to give you those speeds earlier.

                Cool software link, thanked. I will get back to you after some roaming with the laptop. It is registering a max of 54Mbps atm though so ???.

                I use channel 11 always because the Wii is retarded  ::)
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                  Re: Can I Use 2 Wifi Routers together?
                  « Reply #16 on: March 14, 2011, 02:52:18 AM »
                  Cool software link, thanked. I will get back to you after some roaming with the laptop. It is registering a max of 54Mbps atm though so ???.

                  That's because it generates that based on which protocol revision is being used ie b = 11 g & a = 54.

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                  Re: Can I Use 2 Wifi Routers together?
                  « Reply #17 on: March 14, 2011, 05:04:09 AM »
                  So how do I test the transfer rate at any point?
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                  Re: Can I Use 2 Wifi Routers together?
                  « Reply #18 on: March 14, 2011, 11:26:14 AM »
                  Bleh confused.

                  The best signal and speed I can get is 20Mbps by only using the old router...

                  Also, lots of wireless traffic where I live. Not sure how some of them work at -10 decibels when I only get -30 @ 1ft ???
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                    Re: Can I Use 2 Wifi Routers together?
                    « Reply #19 on: March 14, 2011, 12:20:32 PM »
                    Bleh confused.

                    The best signal and speed I can get is 20Mbps by only using the old router...

                    Also, lots of wireless traffic where I live. Not sure how some of them work at -10 decibels when I only get -30 @ 1ft ???

                    I get -55 at about 15ft (through a stud wall.)

                    It could be a directional antenna that you're picking up at -10.

                    You should be aware that you won't get the full 54Mbps if encryption is turned, I'm not sure what the exact overhead is.  Also, the router <-> router communications will cut into the available bandwidth as well.

                    How old is the ~5Mbps laptop?  It might be an older wifi driver / chipset.  I'm clutching at straws here really, but it couldn't hurt to try to find an updated driver for it.

                    It might also be worth looking into replacing the wifi kit with something that is N rated.  Seeing as you've got a ridiculously fast connection you would probably see the benefit.  With that said, I suppose that depends on why it is you want a faster connection to the laptop(s) and if you're willing to spend the money.

                    Also, you could try moving the routers slightly closer together, as if they're on the edge of each others range you'll be getting slower speeds when you're connected to the 2nd router, despite showing an "excellent" connection on your wireless card.

                    It might be worth testing the wifi on the ~5mbps laptop on the 2nd router and then on the 1st router to see if it's the laptop or the router it's connecting to.  In theory it should be connecting to the strongest router it can find, but it might not be.  You can test this by creating a MAC address filter to prevent the laptop from connecting to one of the routers at a time.  If it is getting the same speed on both, then the problem points to the laptop, if not, it could point to the router(s) and possibly the placement / distance / obstacles in the way.

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                    Re: Can I Use 2 Wifi Routers together?
                    « Reply #20 on: March 14, 2011, 02:12:41 PM »
                    When using two routers in the same area, set one to channels 3 and the other to channels 7. Or some combination where they are three or four our channels apart.

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                    Re: Can I Use 2 Wifi Routers together?
                    « Reply #21 on: March 14, 2011, 02:42:51 PM »
                    I get -55 at about 15ft (through a stud wall.)

                    It could be a directional antenna that you're picking up at -10.

                    3 of them!?

                    You should be aware that you won't get the full 54Mbps if encryption is turned, I'm not sure what the exact overhead is.  Also, the router <-> router communications will cut into the available bandwidth as well.

                    I've not tried turning it off but I wouldn't like to leave it off anyhow.

                    How old is the ~5Mbps laptop?  It might be an older wifi driver / chipset.  I'm clutching at straws here really, but it couldn't hurt to try to find an updated driver for it.

                    Couple of years, works fine. It just gets to go to all the worst places cos it's portable :p (usually works up to 20) Drivers are newer than what is currently available. Does not like 5GHz wifi.

                    It might also be worth looking into replacing the wifi kit with something that is N rated.  Seeing as you've got a ridiculously fast connection you would probably see the benefit.  With that said, I suppose that depends on why it is you want a faster connection to the laptop(s) and if you're willing to spend the money.

                    I have a brand new "Super" router from Virgin Media, the problem is that I'm not getting a strong enough signal from it. That said I have been thinking about a new secondary router as the current one is now quite old and second hand reconditioned in the first place. Never knock reconditioned stuff though, sometimes it's better than the brand new stuff. The rest of the time it's just as good.

                    Also, you could try moving the routers slightly closer together, as if they're on the edge of each other's range you'll be getting slower speeds when you're connected to the 2nd router, despite showing an "excellent" connection on your wireless card.

                    They are about 1.5 meters away from each other connected by an ethernet cable.

                    It might be worth testing the wifi on the ~5mbps laptop on the 2nd router and then on the 1st router to see if it's the laptop or the router it's connecting to.  In theory it should be connecting to the strongest router it can find, but it might not be.  You can test this by creating a MAC address filter to prevent the laptop from connecting to one of the routers at a time.  If it is getting the same speed on both, then the problem points to the laptop, if not, it could point to the router(s) and possibly the placement / distance / obstacles in the way.


                    I have connected it to both access points individually and get a slower result when both are active. Signal strength issues aside, it could just be that I'm demanding too much from the receiving hardware, it is after all either old, cheap or both.

                    When using two routers in the same area, set one to channels 3 and the other to channels 7. Or some combination where they are three or four our channels apart.

                    Tried that. Spammed the entire spectrum with my network still to no avail (channels 1-11 I believe it was)
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