Wireless network adapter not working

[therealzeus]

I have purchased a couple network usb adapaters (Netgear N-300 and Linksys AE2500) and both work fine surfing the internet but when I try to play World of Warcraft the wifi loses connection to the router and I lose all internet capabilities on my computer. My friends computer is still able to use the internet though. Any ideas?

 

[therealzeus]

Also i have an Asus USB- n13 network adapter that allows me to play online games but it will occasionally drop the connection unlike the others where the connection instantly shuts off