There are many things that can cause your WiFi connection to be weak; router placement, walls and other appliances can all affect how strong your connection will be. One other factor, which many people don’t take into account, is the interference from other routers. If your routers shares a channel with a nearby router then you’ll see slower downloads and weaker connections. This problem is especially prevalent in apartment complexes and dorms where there may be 15 routers visible to your computer!
The good news is that there is a free web app, WiFi Stumbler, that will help you find the best channel for your router so that you can get a strong connection anywhere in your home.
To use WiFi Stumbler, simply run the tool and it will use your notebook’s WiFi antenna to survey the local WiFi connections to figure out what channel you should set your router to.
After you find out what channel to put your router on, you’ll need to change the settings on your router manually. The process differs from router to router; but the process should be accomplished in 3-4 steps. To get started you’ll need to log into your router, look for WiFi Settings and under one of the WiFi options panels you should see a drop down box to choose the channel your router uses.
The best way to find out how to do it on your specific router is to visit the manufacturer’s website or Google, “How to change the channel on MyRouterName&Model” and follow the instructions.