2 Routers 1 Home Network | Why Disable DHCP?
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- เผยแพร่เมื่อ 5 ส.ค. 2020
- When you have 2 routers on 1 home network, is it really necessary to disable DHCP?
"I didn't disable DHCP on mine and it worked fine!"
Yes, it's true that it's not necessary to disable DHCP. Dynamic Host Configuration Protocol's whole purpose is to assign IP addresses to devices on your network. But if you don't disable it, you will have problems in the future.
Router 1 has a DHCP server that operates INDEPENDENTLY of Router 2, which also has its own DHCP server. They don't communicate with each other which IP addresses they are handing out.
It's possible that Router 1 can assign DIFFERENT IP addresses than Router 2. It's random.
However, it's also possible Router 1 can assign the SAME IP addresses as Router 2.
You can even plug everything in and have it working initially with no IP conflicts. But then later when you get back home from work you can be assigned a NEW IP address without even realizing it. So it's possible to have problems in the future even if you aren't adding "new" devices to your network. Your IP address is LEASED to your device from the DHCP server for a temporary amount of time. Like 1 day or 1 week. Then when that expires, it CAN be assigned the same IP address again. But it can ALSO be assigned a different IP address. This opens up the possibility for IP address conflicts days, weeks, or months down the road.
It is possible to make advanced configurations to your DHCP servers so that they are choosing different IP addresses independently so there will be no IP conflicts. But I believe in the KISS principle (Keep It Simple, Stupid). Just disable 1 of the DHCP servers. No need to make all kinds of configurations that achieve the same result as simply disabling DHCP on all but one router.
All devices that connect to the router with DHCP disabled can still obtain an IP address from the router with DHCP enabled. Basic networking concepts allow that to happen.
I hope this was clear and not more confusing. Thank you for your time and I hope I've helped you out! - วิทยาศาสตร์และเทคโนโลยี
You don't how happy i am to have found your channel. Thank the heaveeeeens 😌♥️
Man, you're totally one of those people who's effective in teaching... cuz a guy like me, who had no clue of this DHCP and other router terminologies etc., finally understood this sh** by only just watching this 10 min video of yours. 1 sub count from me? done.
Me at 7:21. So that's how a switch works! Believe me I learnt more about switch by watching this video rather than plenty others in youtube. Because apparantly nobody ever told me how a switch works in combination with a router. All they told was a router has DHCP where as a switch doesn't. This video gave me the complete idea. Thanks! This helped me a lot.
This man is genius in explaining complex things..appreciated
Thank you so much, this is the best explanation of conflicts that I’ve received so far, was trying to figure out why my phone would just not work sometimes on Wi-Fi.
Finally - someone explains why the secondary router should be set up in AP mode with DHCP turned off. Thank you very much.
you can split the ip address , where no issue
Thank you for your explanation. I used to be a network and server administrator some 20 years ago. Since then I have been doing other stuff in ICT, more business architecture orientated. I have forgot all the skills I used to have. I'm going to move the new apartment in couple of days. Because of two stairs I need to have two wifi routers and I simply didn't remember how connect them together in right way.
how come you forgot that mate?
What you have said is common sense. The best solution is always to keep things simple. I have a couple of routers at home. The nightmare was setting up all the routers the other ways you have mentioned: setting up the IP ranges etc. Since I saw your other movie about how to set up routers disabling DHCP and changing IPs in every one of the routers, life has become easier.
A friend told me to do this, i wanted to know why.
And this is a clear video with the info!
I did a similar video and yes disable DHCP because it may or may not work and why take the chance. Its a simple one click disable tab. Its not a difficult task and its the same as disabling the UPNP which is also necessary. Good video Home Network Central. By the way I love Home Networking!!
Yes that was very helpful as we have two routers here and we had conflicts, so hopefully when my son in law gets home from work he can disable DHCP on the secondary router, so thanks for the clarity.
Man love how you explain it for us network dummies can understand it! Lol Thanks man been having this exact problem! 😆
Absolutely brilliant explanation! the best on TH-cam!
Great explanation. I set up a google Wi-Fi nest and noticed my phone’s internet connection was always slow. Now I know why. I will disable my cable modem’s DHCP. Thanks
Thanku soo much for providing me this information.
I m not able to use the internet for 5 long hours. Now I get my solution.
Thanku soo much buddy 🥳
Short & Clear. Well done
Thanks ! Straight to the point , easy to understand ✅
This man can explain complex topics and simplify it for the regular peeps. Thanks!! This helped me a lot
This odd my 4G modem it keeps disabling DHCP i have no External Router hooked to it my bec 6300nel Ridgewave R15 LTE modem
This guy is a beast he knows his shit i get calls with other ITs i explain this and they are lost, when i get calls with ITs like you i love it yall understand this my calls are done within 20 min tops, ITs that dont we will be hours on the phone and nothing i start thinking this ITs are ripping off their customers is not that hard but this guy knows his shit
That explanation was FANTASTIC! thank you brother! 👍
I just subscribed this dude is a beast explained everything in a couple minutes and he is right
Very clear and very simple explanation thank you for you help and instruction Keep it simple !
I found the major issues with multiple DHCPs at different routers are the resources sharing, such as printers, NASs, they won't able to cross all the routers. IP conflict is not really a issue as you can assign different IP ranges for each router/DHCP.
You can but the issue is that most people will not do that and you will get IP conflicts.
Yes the different ip ranges for each router/ dhcp is the solution
Have one router on 192.168.1.x and the other on 192.168.0.x
Finally the right information, Thanks man !!!!
Glad to help!
why this channel just appeared today :( this was detailed, now i understand now .. thank you so much ..
I think I got that problem with my Echo Dot and my sister's Echo Dot, thanks for the video man
No problem 👍
Life saving video... huge kudos to maker...
Excellent video. Perfectly explains which DHCP setting to use for an access point. Thanks!
hey look, we want a lan party but it doesnt show us on the same network. yeah i didnt need youtube to explain this to people, but its finally nice to explain if your stranded in the middle of nowhere with too many computers, this is always good to know.
Omg what a great teacher you are❤️❤️❤️
Sir you are legend for me. I was looking this from long time.
Really excellent explanation
Very easy very simple and informative
Thanks a lot for great efforts
Thats goooooood man i wish it and techs knew this, isp will put in passthrough or disable that but no one understands other router settings
Very well explained. Thanks for this
Your explanation is awesome. I like your explanation.
Fantastic explanation. As far as I'm aware it is common for ISP modem/routers to have DHCP servers you can't disable. In these cases I'm guessing you should always disable DHCP on your custom router (non ISP) and leave the one on the ISP router enabled.
Thank you for the explanation!
Best explaination on TH-cam
Dude! You're speaking my language. Insta-subbed.
Thanks sir today my all confusion about DHCP you cleared that thank you so much sir.
Liked it how he explained...!!!
I had same kind of problem with my 2 routers. One is connected to cabe internet connection, out as WIFI(hotspot).
Other one used as wifi extender.
Now after turning the other router as wifi extender, there was no internet access. I researched a lot about it and found it got something to do with DHCP. Right after disabling DHCP of the other router, the Internet started to work. But I didn't knew what disabling DHCP means, now thanks to the video I get what was going on with those router. Thanks for the explanation.
Bruh, me.again. Just to let u kno, I just subscribed, your vids are informative and you solved my first issue fantastically. Would you consider doing a vid on setting up VPN client on a secondary router. Team HOME NETWORK CENTRAL!!!💥🙋🏼💥
Nicely and well explained.
Thanks man, it helped me a lot
thanks for the perfect explanation.
Nice job! I bought a new router and want to add it to my too old Verizon FiOs modem/router to get a better wi fi signal. I'll check out the disable dchp video for help. thanks again.
Hi great video, but not sure if I missed it in the tutorial. Whether the ethernet cored has to stay connected to each router that you add after configuring? Or can they be wifi connected to the home router? Thanks Dean.
thank you for making this video, I searched for this answer and counldn't find it anywhere until this video
I have two networks in my house running on two different segments with DHCP running on both routers. But I segmented my network, one for my virtual network home lab and one for my family.
Very good explanation one video with the very good information no other parts very good.
I just disabled DHCP and NAT on my router. I've got a custom Linux router/server that now handles DHCP for my secondary router. Before I just had the router plugged in via its WAN port, so it would treat the server as WAN, this didn't have any issues because it still gets an IP, its just private instead of public. The issue before was that my PC that is plugged into my server couldn't talk to devices connected via the router. Also, the secondary router isn't super powerful, so now it gets to do less and forward everything to my pretty overpowered router.
another question.. can the internet provider monitor and change the configurations i made in the routers on their end?
Your video make people understand better and clearly, can i request a video see that you a good teacher, the video i want you to make is to add unify ap the roof mounted to to the network with it's configuration and also how to access the access point remotely as i think the other guy's are skipping details
Thank you, solved my problem :D
Hello, this is a great video thanks! You have a new subscriber! Questions…
1.- Can you connect several clients to the secondary router as well?
2.- Can you see the clients connected on the secondary router while in the network map of the secondary router?
3.- Can you set parental controls, firewall, vpn on the secondary router.
Answers: #1 YES, #2 d second router will function in bridge mode or like a repeater via cable or wifi, #3 NO, all configuration go to router #1, except when you create a new wifi password and wifi name for router #2.
Thanks for the follow up video. My question is on another video I watched they kept it enabled and changed the Channels on it where it doesn’t not interfere with each other such as taking Channel off auto and putting it on 1 and the other one being on Channel 11. What is the best option ? I know you mention the KISS method but just curious if there is any benefit to doing it either way? Thanks
The channel configuration you're talking about doesn't affect the IP addresses. That will help with interference between the 2 routers WiFi signals. Even on different WiFi channels both routers will be on the same IP network. But changing the channels like that is kind of similar to the IP address DHCP server idea. You don't NEED to do that. it's possible both routers could pick different channels automatically. but it's also possible they could automatically pick the same channel. if you manually check them and find that they're interfering with each other then it might be a good idea to set their channels manually. But again the channel thing is completely separate from the DHCP server. Thanks for the question!
thanks bro this video was super helpful
Thank you for commenting!
Thank you for the best explanation sir
Thanks for this! Can you tell me if I have to take care to use similar modems? For example, we're in Australia and we have the NBN which is a broadband. Do I need the second modem to be broadband compatible? Or can I use an old ADSL modem?
If you have 2 separate internet connections coming into your home, the modem just need to work for each technology. But no they both do not need to match. You need a cable modem for the cable connection, DSL modem for the DSL connection, etc.
is disabling the older router a better option? I have a modem/router combo that is aging badly and have been advised to get a newer router for faster speeds. I still need to modem half of the combo , so how do I run the internet through the modem (with router disabled) and then through the new router? what do I need to do to disable the router function on the old combo with the Wifi running through the second router?
If you connect LAN from primary to WAN on secondary, that will create two LANs and also avoid the issue, correct? However, I believe that will prevent devices on one router from accessing those on the other since they are in different subsets, right?
very well explained, now let's say I have 2 routers connected but I want to use full time VPN configuration on one of them what do you think should be done with dhcp? keep both of them open because although they are on the same network , the VPN permanent one will be forwarding all his traffic through a virtual network so that they will not be ip conflicts?
Will there be any delay if I plug into router 2 instead of the modem/router provided by the ISP or is it negligible? I'm planning on having this setup because apparently the firewall in my ISP router does not work. I want to hide my PC behind a 2nd router with a functioning firewall.
Was supposed to go and use bridge mode for the ISP router/modem but for some reason it throttles the speed when doing that so I was looking for alternatives.
If I'm understanding this right I can do something like this for my computer:
ISP > Modem/Router (DHCP On) lan port > lan port Router 2 (DHCP On, Firewall On) lan port > Device
perfect explanation
Thank you 😊 you are the man 👨
thank you for explaining dhcp to me i had two routers interfering with each other and had issues at playing games wireless and on cable (ethernet) now one is dhcp enabled as the main router and the other one corresponds with the main one, i can use it to play airlink in my quest 2 without any issues.
Great information
On your lap top did you connect to the wire less router with a cable?
Great video! What are some symptoms of an IP address conflict in networks that have two competing DHCP servers?
You will see devices that drop their connections randomly. On some devices including Windows you will get an IP conflict message popup on your screen.
Slow speed frequent disconnection
Envision a conference room with two wifi routers with DHCP enabled on both. With two people in the conference room - connected to the Wifi lan - it might work. Now take that same conference room when the entire sales team is meeting and now you have 25-30 people with laptops and iPhones trying to connect to LAN. The IP address conflicts will escalate and it will appear as a limitation to max users - as users get bumped over the lan. But the reality is this dual DHCP IP address assignment. Then cure is to set one router as a Ap (which disables DHCP function) and then all can join harmoniously.
So, set your DHCP range on one router only up to 127 and the other from 128 to 255. Then they'll never assign the same network without ever getting an IP Address Conflict.
Yeah, This can also be done. But, He says he believes in KISS Principle. Keep it simple, Stupid!
Big brain 🫡
Edit: thankyou 🗿
I came across this video and was thinking the exact same thing and wanted to ask in comments but i see you covered it 😂
Tyvm!
I thought that it's good to leave the DHCP from the ISP router and home router(2nd). Thanks, in my understanding you just only need one DHCP Server even if you place several routers all over the place. Thank you from the Philippines.
This is awesome.
Thank you sir..I had this three routers one is the main modem router and two are for extended wifi connections and LAn connections but i had this Ip addess conflicts that's why i need re-start my devices or router ta gain register ip addresses.. so the simple solution is to assign one router will received those ip addresses assigns whether which these routers at least once of them.I will try to off my two routers DHCP. :)
What if I wanted to set up a second router out of range of the first (a very long cable to another building with lots of brick in-between)? Could I just connect them LAN -> WAN and be done with it? As one service is dropped it picks up the other? Or is the issue still present?
You will still want to set it up like in the video. The distance makes no difference.
You did a good job explaining this. 👏 and ❤️ ♥️ edit struggling to find hiw to disable the DHCP in my asus ax6000 software
You a goood tech or IT for this video, some do passthrough some bridgemode but people dont understand that
Hii! Just found your channel :) questions, if I extend my WiFi to another house using cables and the same type modem router, can I have diff passwords each and will I still be required to disable DPHS? thank you in advance 😊
I work for a major ISP but our job is ip passthrough or bridemode after thats done and your device picks up the WAN IP we are done is your job to proceed only goood ITs fix as soon as that is done this guy knows his shit
That was a simple and thorough explanation. I just ran a patch cable across my home so I can remove one cable modem. I'm looking to set up both routers in tandem until I purchase a switch. So far none of the videos I've watched - except yours - speaks about limiting the DHCP IP address pool as an alternative to disabling DHCP. The one thing I didn't hear so far is if I connect other devices to the non-DHCP router are they receiving addresses from the DHCP router? I assume this is the case and will be testing soon. No videos I've watched have made reference to this. Thanks for the video.
I connected 3 routers together and wonder if I should disable dhcp server on 2nd and 3rd router. This video explains that I should disable dhcp for my other routers. Thanks
Thx, keep it simple
So can I assign certain items to one router and certain other items to the other router, or could I have one router do 2.4ghz and the other do 5ghz?
I’m guessing that getting into the concept of subnets is unnecessarily complicated when trying to help out people without knowledge of second and third tier network topologies . He is giving the simplest way to accomplish the same end result. Just my thoughts on the reasoning.
Thank you for making a thorough and well explained video, I was able to fully understand how DHCP works. I have a question thought. When i disable DHCP on my second router and connect it to the network i cant seem to be able to configure it by entering its local ip address anymore. I suppose it got assigned an ip from the DHCP server on the main router?? if so how can i find the second router ip and configure it (e.g change the ssid name and password)
log into your main router and view its DHCP leases. Then look for your second router in the list and write down the IP address. From there navigate to that IP address to configure your second router.
What if I had my connection lan to wan? .. should I disable dhcp on router 1 or 2
Thanks!!
I discovered that if you limit the IP address range on your routers, making sure the range does not conflict with each other,, it is possible to have DHCP enabled with no problems. You can also "reserve" and IP address to a specific device so that it always goes to that IP address without randomly accessing another IP address that may conflict with another device.
Yes it is possible but why would you want to do it this way? It is way easier to let one device handle the DHCP role and have all your DHCP reservations set on a single device.
Please help me bro!
When power goes off primary router shuts down and when power comes in 2nd router which I had bridged need to be configured again.
Please help me out with this problem.
I need to configure all the settings again and again to bridge my 2nd router.
good day Sir, can i still use the LAN ports on router #2 to connect a cable to a desktop?
so we shouldn’t have any problem if wireless is disabled on one and we only connect to second with wireless or wired without disabling any dhcp servers?
not an issue with dhcp if the "netwrok ID" ( the 1st 3 numbers of the ip address) of the routers are different ( the routers' own default ip address can be changed in the routers' setting if needed). Routers by default only assign random IP addresses to the "host ID" the 4th number of the ip address (1-254). Just make sure the routers' "network ID" are different that's all. Better to use dhcp to make use of the routers processing power especially if you have many devices ( IofT for example).
thank you!
Hey! I hope you respond to me! Why does my VOIP avaya, i work as call center agent, doesn’t work with a static IP router? It just can’t log in. And I’m planning to buy another router and set it to DHCP but I dont think it will solve the problem
Can I connect the 2 wifi routers through a switch or do I have to run a lan cable directly to both?
god bless you 👍🏻
thank you.
Thank you for a great video, really good explanation.
I have a problem though, i was hoping you could point me in the right direction.
I have set up two routers like you have showed, lan to lan, and i disabled the dhcp on my primary router and have it enabled on router number 2.
But it seems like if I reconnect a device to my network it won't get internet access unless i set a static ip.
What could cause this problem?
Primary router shoud have dhcp enabled and secondary disabled.
If you disable the dhcp on 1 router, do you also turn off the dynamic ip address as well?
I turned off dhcp from the 2nd router and wifi works for mobile phones well. But for computers or laptops via Lan or wifi it gives me access error on the browser
" your connection is not private".. any help please