Troubleshooting Wi-Fi Dropouts

Al writes: I have a wireless network and I can't stay connected to my main computer, but I can connect with other wireless networks around me, and I don't lose connection with them. What do you think the problem is?

Al is not alone here: Wi-Fi networks are wonderfully convenient, but notoriously problematic, especially when all your neighbors all have their own wireless networks, too. In my house, I can see seven other Wi-Fi networks from my living room, at least two of which are stronger than my own, which is based one story down.

As far as disconnects, the problems are many: Wi-Fi is still an evolving technology, and many different flavors exist. Theoretically they are all compatible, but realistically there are interference issues and other concerns which I won't bore you with right now.

Instead, here's a list of things you can try in order to solve the problem of your computer dropping off your Wi-Fi network.

• Move your router closer to you. The key to all of these tips is increasing your signal strength. If you've got a cable modem or DSL, consider moving the router to a different cable or phone outlet, closer to where you do most of your work. Also try to avoid having large metal or concrete structures or big electronics in the path of the signal. All of these tips should help increase signal strength and help avoid dropouts.
• Upgrade your router. If you're still using an 802.11b router, you're missing out on the improved speed and range that 802.11g or pre-802.11n routers will give you. You may also have a simple compatibility issue between your laptop and your router: Wireless chips from different companies or older generations sometimes don't play well together, and you may just need to try a different brand. Although this option is the most expensive, you can always return the new router if it doesn't solve your problem.
• Add a signal booster. Many routers support add-on devices that increase the strength of the wireless signal from the router. These can be in the form of dedicated signal boosting hardware or larger antennas that hook up to your router. (Note that not all routers support all types of add-ons, so do your research before you buy.) Either way, this is cheaper than buying a new router.
• Fiddle with advanced settings. If you're comfortable dealing with your router's management software, you can experiment with a few things that might help. Try changing the channel of the router, which specifies what frequency it works on: 1, 6, and 11 are the usual choices, and switching from one to another could alleviate congestion from your neighbors. Some routers also let you increase signal strength in software.

Other tools exist that can help you troubleshoot dropouts, but these are probably overkill for a novice user.

Give these tips a spin. If they don't solve the problem entirely they at least ought to be of some help.