Solved error 'IP equals subnet please correct'

April 18, 2012 at 12:01:19
Specs: Windows 7, 1.6GHZ/2GB
Following instructions on How to add a 2nd router to network. This error will not let me complete and save the definition. Changed 2nd router IP address to 192.168.1.2 static, disabled DHCP, added 1st router IP as default gateway, set subnet mask to same as 1st router. Problem occurs in next frame called 'Network Setup' it is requiring a 'router IP' & subnet mask again and will not accept either the 1st or 2nd router IP address - gives the "IP equals subnet please correct" error or "LAN & WAN IP addresses are identical please correct. Have reset the 2nd router to factory and tried again to no avail. Had this config working for over a year and mistakenly unplugged 2nd router and lost settings!!
Suggestions?

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✔ Best Answer
April 19, 2012 at 13:20:36
You have the link to the setup you are reading? I suspect you mixed the two scenerios.

setup #1 is where you only use the 2nd routers lan port to connect to the first routers lan port and you disable its dhcp server since dhcp is coming from the 1st router.

setup #2 which it appears is what you are doing, is where you do the following;

1. enable dhcp on the first router but with a starting scope of 192.168.1.3
2. assuming its gateway assigned is 192.168.1.1 you assign 192.168.1.2 to the wan interface of router2.
3. router2's lan subnet is 192.168.2.1 and its dhcp is enabled
4. router1 lan port is connected to router2's wan port

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#1
April 18, 2012 at 12:05:20
So, what subnet mask are you using?

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#2
April 18, 2012 at 14:21:54
unplugging the router would not lose the settings.
it takes more to do that like hit the reset switch.

Are you trying to setup the 2nd router via the routers cd/program?

you would not put any entries in the network setup.

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#3
April 18, 2012 at 14:59:01
A link to this guide you're using might be helpful.

The following:

" Problem occurs in next frame called 'Network Setup' it is requiring a 'router IP' & subnet mask again and will not accept either the 1st or 2nd router IP address -"

sounds to me like it's possible you're being asked to configure the LAN IP address on the second router.

If you've connected from a LAN port on router 1 to the WAN (internet) port on router 2, this is likely the case.

Question: Are you setting up the second router to have a second, separate subnet from router 1? If not, and you're just trying to extend the LAN configured on router 1 then you should be interconnecting the two from LAN port to LAN port

Click on my name above in this response and read my “how-to” guide titled, “Add a second Router to your LAN

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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Related Solutions

#4
April 18, 2012 at 16:24:25
using 255.255.255.0
Resolved my problem by trial and error. Changed IP address of 2nd router first, saved settings and came back in and disabled DHCP and renamed the ssid to match my 1st router ssid. Everything seemed to be working. What I didn't do is set a static IP within the 2nd router as the instructions seemed to direct. I just now tried to bring up the router page in the browser and the message said it was online but not responding. Guess I'll keep on checking.

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#5
April 19, 2012 at 10:11:18
mspinar what are the ips you are using?

for example

internet ip address<>wan port[router1]lan port< (ip subnet)>wan port [router2]lan (port subnet)

so what are the ips used between the two routers and the ip on the lan side of router2?

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#6
April 19, 2012 at 13:09:46
No, I'm trying to use the same settings as the primary router, subnet mask 255.255.255.0. Not using a cd, just a browser and manual settings. I have a netbook offline from the main network and plugged the 160N into that with an ethernet cable to get to the admin page. Once it's back on the network with an IP of 192.168.1.2 (primary router is 192.168.1.1) and the DHCP scope is set to 100-149 on the primary, disabled on the 2nd. The network devices screen on Win7 shows both routers but I can only browse to the primary. Still something is not right.
I also reserved the IP address for the 2nd router in the 1st routers assignment table by MAC address. What have I missed?

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#7
April 19, 2012 at 13:12:54
Curt, I am using your guide. That's what seemed to get me into trouble trying to set the static IP address. When I just changed the net address for the device, it started working, of course also I reserved that same address in the DHCP table by MAC address in the primary router.

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#8
April 19, 2012 at 13:20:36
✔ Best Answer
You have the link to the setup you are reading? I suspect you mixed the two scenerios.

setup #1 is where you only use the 2nd routers lan port to connect to the first routers lan port and you disable its dhcp server since dhcp is coming from the 1st router.

setup #2 which it appears is what you are doing, is where you do the following;

1. enable dhcp on the first router but with a starting scope of 192.168.1.3
2. assuming its gateway assigned is 192.168.1.1 you assign 192.168.1.2 to the wan interface of router2.
3. router2's lan subnet is 192.168.2.1 and its dhcp is enabled
4. router1 lan port is connected to router2's wan port

Answers are only as good as the information you provide.
How to properly post a question:
Sorry no tech support via PM's


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#9
April 19, 2012 at 13:32:43
internet ip address<>wan port[router1]lan port< (ip subnet)>wan port [router2]lan (port subnet)

so what are the ips used between the two routers and the ip on the lan side of router2?
Internet ip assigned by Comcast DHCP it currently is:
67.160.89.2 w/subnet of 255.255.252.0
Router 1 lan port is 192.168.1.1 w/subnet of 255.255.255.0
Router 2 lan port is 192.168.1.2 w/subnet of 255.255.255.0 pointing at router 1 as its default gateway (192.168.1.1)


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#10
April 19, 2012 at 13:57:03
It certainly looks like I had them combined at least but I only printed out option 1 for reference! I was getting hung up in how to assign the IP address to router 2, and finally just changed it on the basic page and disabled DHCP for router 2 and set the default gateway to #1. I think I'll unwind the DHCP reservation I made in Router 1 for that IP address. This appears to be a case of overthinking the problem on my part. Thanks for the help in clarifying the correct path.

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#11
April 19, 2012 at 14:38:59
Yes, it looks like you confused the physical connection of the two devices. In post #9 you said:

internet ip address<>wan port[router1]lan port< (ip subnet)>wan port [router2]lan (port subnet)

Whereas version 1 of my guide has you connecting the two routers as follows:

Internet >> (WAN Port) Router 1 (LAN Port) >> (LAN Port ) Router 2

With this setup, you're simply adding to your existing subnet, not attempting to create a new, separarte subnet. If you physically interconnect your routers LAN port to LAN port and then follow version 1 of my guide, it should work.

It matters not how straight the gate,
How charged with punishments the scroll,
I am the master of my fate;
I am the captain of my soul.

***William Henley***


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