Two wireless routers (one g, one n), same network

[ChAoTiCpInOy]

How do I do this? I have a wireless router right now running combined G and N. I want to make it run N exclusively and connect another wireless router through ethernet to use G that way I have both networks and maximum efficiency.

 

[Lean L]

disable dhcp on the second router, assign it a lan ip from your subnet then plug them lan to lan.

 

[JackMDS]

Configure the second Router thus way and put it on a different channel.

Using a Wireless Router as a switch with an Access Point - http://www.ezlan.net/router_AP.html
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[ChAoTiCpInOy]

What do you mean a different channel? Isn't 802.11n and 802.11g on different frequencies?