LAN Connection problem

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matoo

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Oct 5, 2014
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I have a LAN set at home. it consist of 1 DSL modem which is connected to my desktop through LAN Cable at port 1 and port 2 is connected to WAN port of my tplink wifi router. from that router port 1 is connected 2nd wifi routers WAN port. Internet works perfect. DSL ip is 192.168.1.1 255.255.255.0. wifi 1 at first floor ip is 192.168.2.1 255.255.255.0 and its WAN ip is 192.168.1.2, 2nd wifi is at ground floor ip is 192.168.3.1 255.255.255.0 and its WAN ip is 192.168.2.2. now the problem i am getting is that if i connect togroun floor wifi 2 through any device i can login by using admin user and password, but my system which is connected to DSL i cant connect to any of the other 2 wifi devices to login through my systems internet browser. how can i manage all 3 routers from my system while i am on the network of 192.168.1.1
 
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It will work for Internet, mostly, but you're running 3 layers of NAT. That's not a good idea. You can't get that working properly unless you start messing around with static routes and things are going to get very messy.

Is there a reason you want all 3 devices effectively creating separate networks (which is what you're doing at the moment)? Surely you just want one big network, with all devices accessible from one another?

If that's the case, what you need to do is:
1) turn off DHCP on both wifi devices
2) Put both your wifi devices onto the same subnet as the DSL modem (which is actually a modem & router if I understand you correctly)
3) move the cables connected to your wifi devices from "WAN" to "LAN" ports

That way...
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rhysiam

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Mar 24, 2013
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It will work for Internet, mostly, but you're running 3 layers of NAT. That's not a good idea. You can't get that working properly unless you start messing around with static routes and things are going to get very messy.

Is there a reason you want all 3 devices effectively creating separate networks (which is what you're doing at the moment)? Surely you just want one big network, with all devices accessible from one another?

If that's the case, what you need to do is:
1) turn off DHCP on both wifi devices
2) Put both your wifi devices onto the same subnet as the DSL modem (which is actually a modem & router if I understand you correctly)
3) move the cables connected to your wifi devices from "WAN" to "LAN" ports

That way, you'll have your wifi "routers" functioning effectively as access points, the DSL modem will handle DHCP for all devices on the network and you'll be able to access the admin settings of all 3 "routers".

Plus, the devices on you 2nd wifi won't be going through 3 layers of NAT, which can actually mess up certain things (like VPNs, for example), not to mention adding to latency.
 
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matoo

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Oct 5, 2014
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bro problem is not that i am using 3 things it is our requirement to use this setup up cause we dont get good signals on different floors. every ting is working properly but only problem occurs when i need to setup my routers have to use my phone to connect to different router to manage it. i wan to manage it from my system phone screen is not good for setup.
 
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matoo

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at the moment i have to go out for some work will be back in 2 to 3 hrs will try out your method and will get back to you thanks for the reply.
 
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T3CHN0RRI5

T3CHN0RRI5

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Well i didn't get you exactly could you be a lil' more specific?
 
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rhysiam

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If you're not comfortable setting a static IP on a device to manage a router, doing it in the order below should make sure you never lose connection to your router's while you're making the changes

For Wifi Router 1:
- Unplug the WAN port
- Connect a device to its wifi network and open the admin console
- Change the IP address of the wifi router to a valid IP address on your primary (192.168.1.x) network - IMPORTANT, make sure it's not already in use (192.168.1.1 is for example is already used by your modem router) AND make sure it's not in the DHCP range that your modem router is configured for (otherwise the modem router may give that IP address to another device and you're in trouble)
- Before rebooting, check that DHCP on the wifi router has been updated to the 192.168.1.x network (it should update itself, but if not do it manually), once set, you can reboot the wifi router. After reboot, you device should be able to connect to the wifi router again using its updated IP address.
- You can then turn off DHCP on wifi router and reboot it again
- While it's rebooting, plug the LAN cable that was formerly plugged into the WIFI router's WAN port into a free LAN port instead
- After a reboot, you should then be able to connect to wifi. Now you should have full internet access and be able to get the admin console from any device.

Then, repeat those steps above for your second Wifi Router (being sure to choose a different IP address) and you should be good to go.
 
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rhysiam

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I should say as well, that some Wifi Routers have "modes" that you can put them in. If they offer a "Access Point" mode, then turn that on at the point where you switch off DHCP (still switch off DHCP though, that's important!) The TP-Link devices I've used in the past don't offer this mode, so they always try to be a router. It shouldn't really matter though.
 
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rhysiam

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I think what he means is that he needs both the modem router and the additional 2 wifi devices to provide sufficient wireless coverage.

I'm guessing you're suggesting he actually needs one router and two wireless access points, and it's having all three devices functioning as routers that is causing the problems?

That's what I'm suggesting he does.
 
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T3CHN0RRI5

T3CHN0RRI5

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You're right I wanted him to try it with one router a powerful one at that and two access points and then try to access the settings using one of these access points or the router itself(LAN)


 
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matoo

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Oct 5, 2014
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it is working now thanks to both of you it was well in time. my dsl is both wifi and lan belt-in i did what rhysiam told me to do. first i changed wifi1 ip to 192.168.1.100 disabled dhcp and connected lan cable coming from dsl modem to wifi 1's free an port. then changed wifi 2 ip to 192.168.1.200 and disabled its dhcp too and connected lan cable coming from wifi 1 to wifi2's free lan port and all is what i wanted. now i got iptv working on my lan before it was only working where dsl modem was. because of that tv i switched dsl with wifi 2 in my room. now any where it is working. once again thanks a lot.
 
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rhysiam

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Glad it's all working for you.

Can I strongly suggest you check the DHCP range of your model router. It's probably 192.168.1.100-200 - which means that at some point it may give out the IP address .100 or .200, in which case you'll have an IP conflict with those routers and you'll be in a world of hurt.

Just make sure the IP range is something like .101-.199 ... whatever, as long as it has enough IP addresses and does NOT include any static devices you've configured.

Glad we could help and good luck.
 
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