How to Make a Wii's Wi-Fi Stronger

Move your router or your Wii so that they are as close to each other as possible. Set the router in a high place, such as on a table or on a second floor. Put it in a place where the signal will not have to travel around odd corners or through dense objects, such as brick walls or metal piping in the wall. Consider purchasing a Wi-Fi repeater or another router to replicate the signal closer to your Wii if you cannot move your router closer.

Remove any objects that may be blocking the router's signal or interfere with it, such as large file cabinets, microwaves, baby monitors and cordless phones. Anything that emits a 2.4 GHz frequency could potentially interfere with the Wi-Fi signal, thus making your Wii's reception weaker.

Change the station of your router. Wi-Fi operates on certain channels, just like radio stations. If your neighbors are using the same station -- which isn't unlikely, since routers come on the same preset channel -- you may get interference. Find your router's Default Gateway address, which you should have written down somewhere, and type it into your Internet URL bar after "http://". Enter your password, go to your wireless settings, and choose a new channel from the drop-down menu.

Update your router's software regularly. Keep your Wii clean, especially the vent that allows it to cool down.

Purchase and install a new antenna for your router. There are two primary types of antennae -- one that transmits in all directions and one that transmits in a targeted direction. Choose the one that best suits your particular setup.