If wired routers are not properly configured, they will stay in constant competition for control of the network, disrupting your connection to the Internet. Usually one wired router is bridged so you can add a wireless network. You may choose to bridge two wired routers if you want to extend networks throughout your house. You can also bridge two wired routers if you would like to increase the number of ports available for computers and other network equipment.

How to Bridge Wired Routers - 27