Position it better
Unless you are living in a cave and you somehow miraculously have internet connectivity at the same time, you probably figured out that if your wireless router was in the corner of your kitchen under a pile of old newspapers and your computer was located on the second floor on the opposite side of the house — it is a great idea to place your router in an open position (preferably in the center of your house) where it isn’t obstructed by dense or metallic objects such as file cabinets or brick walls.
Other items that may interfere with your signal include (but are not limited to) microwave ovens, cordless phones, garage door openers, and even baby monitors. The bottom line is that the less objects in the signal’s way, the easier it is for it to relay information to your computer.
Change the WiFi Channel
Generally, Wifi routers transmit their signals on a radio frequency of 2.4 GHz. Many other household objects may operate on or around the same frequency, like cordless phones, for example. So, the channel becomes bogged down over time with lots of excess traffic that slows down your wireless connection. In the U.S., routers have a predefined set of 11 channels, and the default on a lot of them is channel 6. Changing the channel would reduce some interference. So how do you change the channel?
A great utility many people use is called NetStumbler, a wireless networking tool that just so happens to offer the option for you to change your wifi channel. Once opened, the program gives the choice of fooling around with all of your wireless utilities. Here is where you change your channel:
Since the default for most people (at least in the United States) is 6, you may want to change your channel to something like say, channel 11. Take note that the changing of your wireless channel will NOT in any way increase your speed or bandwith. It will simply remedy your network connection if it keeps breaking off or getting lost.
Update firmware or drivers
Updates, whether related to the router firmware or your computer’s network adapter are done to fix bugs, smoothen out performance and reliability, and maybe even add new features. It is always a good idea to stay up to date with the latest releases by either of these parties