Updating speed of wireless network
If the network has to cover an area larger than the router is capable of transmitting to, or if there are lots of corners to go around and walls to penetrate, performance will take a hit.
Or use a network analyzer tool to see if you have unknown machines on your network. Set up security—preferably isn't as strong—and put in a strong password that's hard for others to guess.There are many other reasons your connection may be less than ideal.Fortunately, we have some troubleshooting tips to help, and many of them won't cost you a dime. Router manufacturers are always tweaking software to eke out a little more performance and speed.Resolving this should be a case of using Windows Update, which you can access by opening the Action Centre from the System Tray (Windows 8/.1) or the Control Panel via the Start Menu (Windows 7) and clicking Windows Update.From here, check the available updates, looking out for anything related to your wireless card.