Will a second router affect the first

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GraySenshi

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My dad has his router setup with all of his stuff and with everyone connected it tends to be slow also I'm upstairs so I thought I could LAN line a second router and have it use its one dhcp so I can set custom static ip for my different devices connected to my network and I don't want to see everyone on his network and I don't what anyone on his to see all of my stuff say servers and such

Could this affect his network speeds in any way and I assume it would only add 1-2 ms delay to my devices on my network
 
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mbmorris

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Jul 1, 2016
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If you have "servers and such" you should probably be using a wired connection. You say you can run a "LAN line" which I'm assuming is an Ethernet cable upstairs anyway, so just using proper wired connections shouldn't be that much more difficult.

If you do get another router, they will most likely have at least some conflict. Additionally, a good router will set you back $100+, and it would still be inferior to a wired connection. Furthermore, are you sure that the problem is with your router and not your internet connection? If you have slow internet, a router (or even a wired connection) won't help you. Additionally, if you are using a lot of devices simultaneously, especially if they are wireless in close proximity to each other, you will be creating interference.
 
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Solandri

Solandri

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Jan 4, 2012
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It'd be a lot easier to read your question if you'd use punctuation like periods and commas. I can't figure out what you're asking, so I'll answer what I think it is you're asking.

Most modern routers are actually combination router/switches (or router/switch + wifi access point). Due to the economy of scale, it's actually become cheaper to manufacture these than it is standalone wireless access points. So you can use them in switch mode or WAP mode by simply not plugging anything into their WAN port - that is, use only the LAN ports. You have to make sure you give the second router a different IP address from the first, and turn off the built-in DHCP server if you do this though. Two DHCP servers on one subnet will really mess things up.

If you want to keep your devices private (invisible from your dad's network), then you want to plug the LAN cable from your dad's router into the WAN port of your router. Your router will then create its own subnet. You will be able to see everything in your subnet, and you'll have access to most of the network functionality on your dad's network (including Internet). But bi-directional peer-to-peer network protocols like Windows file sharing will not work between the two subnets (it will still work within one subnet).

The second method won't affect his network speeds. From his perspective, it'll look like you've only got one device connected to his network instead of multiple devices (all your Internet traffic will look like it's coming from/going to your router, instead of the individual computers). But port forwarding will become more difficult (need to port forward on both routers).

If you use the first method and forget to turn off the DHCP server, it will severely and randomly impact his connectivity. Computers will mysteriously sometimes have Internet access and sometimes not. They will be able to ping some computers on the network, but not others. And if both routers have the same IP address, sometimes traffic will randomly slow down.
 
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GraySenshi

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Im not really sure what the deal is he has tried several dule ban routers netgear, Apple and they only work ok for about a few weeks then we seem to have a hard time and when ever I am LAN to his network I'm fine no problems so I assume it's just he doesn't have enough bans on the router to use all the devices in our fam and I convinced him to let me run a LAN upstairs to my room and used a older dule ban router and I'm having no issues LAN or wireless on my side and he is still having problems and sometimes no devices can web search on his wireless

I just wanted to make sure mine wouldn't make his run worse and figured it would help if anything. But wile we are on that in avarage how many wireless devices can connect to each ban

O all of my devices are LAN to my router expected the phone and laptop
 
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nigelivey

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Dec 6, 2011
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Whilst you're being the grammar police there is no capital "I" in "will mysteriously sometimes have Internet access"!!
 
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Solandri

Solandri

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The purpose of posting on these forums is to communicate your problem, so it behooves you to communicate it in a manner which makes it easier for others to understand. Contrary to your implication, I'm very forgiving of grammar, spelling, and punctuation errors. Especially since this is a global forum, and a lot of people who post do not use English as their native language. In this case though, OP didn't use any punctuation - he wasn't even trying. I've skipped a lot of questions simply because I couldn't make heads or tails of what the OP was asking.

And since you brought it up, the Internet is capitalized - there is only one global Internet, so it is a proper noun, and thus capitalized to distinguish it from a local internet (idiot proclamations by non-technical press agencies to the contrary notwithstanding). Just like you're supposed to capitalize "mother" when you're talking about one specific mother. e.g. "I gave Mother a card for her birthday." If I'm talking about connecting two business networks to create an internet, I use the lowercase. If I'm talking about the global Internet, I capitalize it.

(And yes I know I have a sentence fragment in that first paragraph. Clearer communication doesn't always mean following strict rules like a grammar Nazi. It's ok to violate the rules if it clarifies what you're saying, or improves emphasis. Not ok just so you can be lazy.)
 
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nigelivey

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The point being you understood enough to try and help, once you had critiqued his post. You have, therefore, nullified your own argument. I just find your pomposity rather needlessly arrogant.
 
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Solandri

Solandri

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You find someone who spends several hours a week providing free help needlessly arrogant? Wow. Forgive me for trying to increase the number of people I (and presumably others) can help by publicizing a problem which causes me to waste extra time decrypting people's questions, thus reducing the number of questions I can respond to.

I will take your advice. From now on, I will simply ignore the questions I'm unable to decipher upon first reading.
 
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nigelivey

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Did you waste any time "decrypting" his question, really?
 
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GraySenshi

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Sorry I was unable to reply yesterday and point taken... Ok so being that wireless is slow. I convinced my dad to let me run a LAN line. It goes from the first floor across the house to my bedroom on the second floor. After doing this and seeing how much better it was. I went and got a old router and plugged that in instead. Now that's one router in the office and one in my room. I had my desktop, server and game consol LAN line to my router and used the wireless for the phone and laptop. After doing this everything ran much smoother for me. later on dad was saying that it might be making the internet slow. So I ran some tests and it seems to be fine. But part of the reason why I ran a LAN line was it seemed slow sometimes. I think it's just to many devices on his wifi for his router to handle.

Note his router has 3x phones, 2x pads, laptop, Apple TV, and printer on the wireless and his laptop LAN. Our isp gives us 15mbps but usaly get about 17.8 and 2 about 1.5 upload

So here are a few questions

1: can the second router actually slow down his devices on his wifi and not mine
2: wouldn't it help being less devices trying to talk to his. Since mine is giving IP address and such to devices on its network.
3: does a dule band router actually help and how many devices per band
4: when my computer copy's data from my server. What path will it take? Will the computer talk to my router then will talk to his router then back to mine then the server and finely back the same way. Or is it computer to my router then the server and back.
5: with this setup what are drawbacks and benefits. I know I get to coustomise my network. We don't see each other's devices. I think he could alow anything my router is trying to portfoward through not sure on that tho. It will get a bit of a delay since to axis the web it has to talk to 2x routers.
 
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