First of all you need to know that bandwidth is dependent on several factors. Check with your Internet Service Provider (ISP), the connection plan you are subscribed to. See if you are with an adequate bandwidth plan and if you are not getting the bandwidth as your plan, you can check a few things that could help you out solve the problems stagnant. Open you browser, launch your favorite search engine and look up for “Internet Connection Speed Checker”. A list of speed testers are sure to show up, go along with some thing that you seem good. Speedtest is one recommended speed calculator, the direct link is http://www.speedtest.net. If you find your bandwidth falling down much, when compared to the plan, sure you got a problem and needs to be fixed.
Most of the bandwidth issues are never problems as such, a few things you might be less careful about that pulls back your connection speed.
Start with checking the condition of your computer, if you got few malwares running in your system, they are likely to take up your bandwidth. So install a good antivirus program, clean of any and every clutter you have and stay clean from malwares. Additionally, you update your network drivers and router firmwares.
Next would be temporary Internet files. Each time you are live, your browser keeps files by a location in your computer, and as times goes by, the files in this folder go up considerably high when you have never cleared it for a while. So you need to clear the Temporary Internet files folder, clean your browser cache, history, etc.
You are almost fine with possible problems with your computer now. Next lets check the outside stuff, if you are using a wireless router, you can check a few things and make sure its delivering its best. Routers come basically in 3 flavors, b, g and n. n router would be the fastest and if you are installed with an earlier version, be sure to upgrade your router to n. Sure this will deliver the best available bandwidth.
Router positioning is another important thing that needs to be addressed. Routers are bundled with an omnidirectional antenna, this means signals are transmitted evenly in all directions from where the router is kept. This is where the position comes to be important. Place your router in a location that is by the center, instead of corners. Do this and every connecting device gets the best of router signals. Another thing that routers operate at a frequency of 2.4 Ghz, if you got devices working on the similar frequency, interference and signal loss will be happening. Keep off devices capable of creating potential interference or vary your router frequency (change your router channel). If your router got a larger area to cover, you can think of installing a wireless repeater, booster or pull in a powerful router antenna.