If one of your wireless devices is out of range of the main modem, you can set up another router to act as a messenger sending signals back and forth between the device and the main modem.

Place the wireless router in a location so it can connect wirelessly to the main router and the user farthest away. Install the router's software, if necessary.

Open your Internet browser. Type "192.168.1.1" into the address bar and press "Enter." Log into the router's configuration utility as the administrator.

Click on the "Basic Settings" tab, and then click on the "IP Address" text box.

Change the last number in the IP address to any number higher than the number of computers or printers attached to the network. Scroll down to the "DNS" heading, and then click on the "disable DNS forwarding."

Click on the "Advanced Settings" tab, and then click on the radio box marked as "Disable" under the DHCP heading.