changing IP adress on TP link

[momirovd]

Hi I am trying to change IP address on my TP link (from 192.168.20.1 to 192.168.1.2), in network, LAN, but any time I give new one, I get the same message:
WAN IP address and LAN IP address cannot exist at a same subnet. Please input another IP address.

 

[nigelivey]

Well if your WAN IP is set to 192.168.1.x /24 you cant put the LAN on the same subnet. as it says! Why do you want to change it?

 

[momirovd]

Well if your WAN IP is set to 192.168.1.x /24 you cant put the LAN on the same subnet. as it says! Why do you want to change it?

I want to change it because I have two routers and my home network doesn't functioning well. So I am trying to establish a LAN-LAN connection between those two routers, and the guidance says that I should change IP address on the secondary router from 192.168.x.1 to 192.168.1.x.

 

[nigelivey]

So where is it getting the WAN address from if it's not connected? What is the model of the router you are having trouble on?

 

[momirovd]

So where is it getting the WAN address from if it's not connected? What is the model of the router you are having trouble on?

Router is TP-LINK, tl-wr340g. It has an IP 192.168.20.1 and is connected now as a secondary router, (with a primary router, IP 192.168.1.1., through a wired connection). It is functioning well for both wired and wireless internet connection. The trouble is that my desktop which is connected wired to this secondary router, can't "see" the other computers and devices in my small home network. I have tried to find solution on internet, and found out that my two routers are connected in one LAN to WAN connection (primary with IP 192.168.1.X and secondary with IP 192.168.Y.1), but that I need a LAN to LAN connection (primary with IP 192.168.1.X and secondary with IP 192.168.1.Y) between those two. - here are the instructions from "wiki how" (http://www.wikihow.com/Connect-Two-Routers):

"Connect the computer to the secondary router. Open the configuration page. If you are making a LAN-to-LAN network, change the IP address so that it matches the first router, except increase the last digit by one (e.g. 192.168.1.1 becomes 192.168.1.2). If you are making a LAN-to-WAN network, change the IP address so that it matches the first router, except increase the second-to-last digit by one (e.g. 192.168.1.1 becomes 192.168.2.1)."

So, when I went into settings for my secondary TP-Link, and tried to change the IP address from 192.168.20.1. to, for instance, 192.168.1.20 (I have tried several different) I'v got the message as described above.

I hope that I managed to describe to you what is my problem, and I would greatly appreciate if you could have any idea how I could get out of the described problem.
Sincerely
Dusko

 

[nigelivey]

Have you tried setting the WAN as static to move it away from 192.168.x.x /24, you could use your actual WAN IP as it isnt going to use the wan port, then it should allow you to change the LAN IP to the one you want. Then disable firewall, dhcp and NAT if you can and connect LAN to LAN.

 

[bill001g]

It should have no IP address on the WAN port at all. If you plug nothing into it it will pretty much just site and wait to get a IP. With no ip it will not conflict.

Now some of these boxes are too smart for their own good. If you plug the wan in and get a IP then unplug it the wan port will keep the IP and subnet it got. I assume it times out after some point. I would reboot the router with nothing plugged into the wan and then configure the lan ip.

 

[momirovd]

Have you tried setting the WAN as static to move it away from 192.168.x.x /24, you could use your actual WAN IP as it isnt going to use the wan port, then it should allow you to change the LAN IP to the one you want. Then disable firewall, dhcp and NAT if you can and connect LAN to LAN.

yes, I did this (all, exept disabling NAT, I couldn't find where to do it) and LAN - LAN works.
However, my desktop still doesn't "see" the others in the network, and I am going to do further research on this.
Thank's for help and god advice.

 

[momirovd]

It should have no IP address on the WAN port at all. If you plug nothing into it it will pretty much just site and wait to get a IP. With no ip it will not conflict.

Now some of these boxes are too smart for their own good. If you plug the wan in and get a IP then unplug it the wan port will keep the IP and subnet it got. I assume it times out after some point. I would reboot the router with nothing plugged into the wan and then configure the lan ip.

Thank you for answer, you are probably right on this, WAN simply is not in use at all, so it doesn't matter if it has an IP address or not. But I did it as previously advised, and I'v got LAN-LAN connection, and since I still have problem with that my desktop on secondary router doesn't see other computers and devices that are wired connected on the primary router, I choose rather to dill with this problem now.

 

[nigelivey]

It should have no IP address on the WAN port at all. If you plug nothing into it it will pretty much just site and wait to get a IP. With no ip it will not conflict.

Now some of these boxes are too smart for their own good. If you plug the wan in and get a IP then unplug it the wan port will keep the IP and subnet it got. I assume it times out after some point. I would reboot the router with nothing plugged into the wan and then configure the lan ip.

Thank you for answer, you are probably right on this, WAN simply is not in use at all, so it doesn't matter if it has an IP address or not. But I did it as previously advised, and I'v got LAN-LAN connection, and since I still have problem with that my desktop on secondary router doesn't see other computers and devices that are wired connected on the primary router, I choose rather to dill with this problem now.

Can you ping from host to host across the network? Have you got discovery turned on?