Help needed for cascading 3 routers

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hyoo83

Reputable
Mar 30, 2015
2
0
4,510
So this is how my structure of routers are: modem <=> 1st router <=> 2nd router(connected 1st router's lan port to 2nd router's wan port) <=> 3rd router(connected 2nd router's lan port to 3rd router's wan port)
1st router: 192.168.1.1
2nd router: 192.168.2.1
3rd router: 192.168.3.1

my 3rd router keeps losing connection after few days and i have to reboot it and it lasts for few days then again. 1st and 2nd router never does it. I replaced 3rd router with new one and it still does something. Am I doing something wrong with cascading? It's to extend wifi for long building structure.
 
Solution
g90814
You should set the 2 and 3 routers to static IP in the same subnet as router 1. Turn off DHCP in routers 2 and 3.

Set them at static IP addresses in the same subnet as router 1, but outside the DHCP range provided by router 1.

Example: Router 1 is 192.168.X.1. It's DHCP range is 192.168.X.2 to 192.168.X.50. Set Router 2 to 192.168.X.51 and router 3 to 192.168.X.52. Change X numbers as necessary for your setup.

Connect Router 2 to router 1, and router 3 to router 2, and you should be all set.
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bill001g

Titan
Aug 9, 2012
28,359
2,766
125,640
Can't say why you would have to reboot you would think the third router should not even know what was upstream from it.

If you only goal is to extend the wireless I would recable lan-lan, turn off the dhcp in all but the first router, change the ip on router 2 and router 3 to something like 192.168.1.2 and 192.168.1.3.

You now are using your other routers as AP and the network is much simpler. If you were to plug into the ethernet on the third AP it should be the same as if you had 2 simple switches between you and the main router.
 
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H

hyoo83

Reputable
Mar 30, 2015
2
0
4,510


Would I connect router 3 to router 2 as lan-lan or router 3 to router 1 as lan-lan? because router 3 and router 1 has quite far the distance.
 
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g90814

g90814

Honorable
Apr 11, 2013
1,382
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You should set the 2 and 3 routers to static IP in the same subnet as router 1. Turn off DHCP in routers 2 and 3.

Set them at static IP addresses in the same subnet as router 1, but outside the DHCP range provided by router 1.

Example: Router 1 is 192.168.X.1. It's DHCP range is 192.168.X.2 to 192.168.X.50. Set Router 2 to 192.168.X.51 and router 3 to 192.168.X.52. Change X numbers as necessary for your setup.

Connect Router 2 to router 1, and router 3 to router 2, and you should be all set.
 
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