Slow WiFi, can't even load YouTube videos on desktop?

[Jarrett Mieure]

Just a week ago, I was streaming 720p HD videos on my new desktop build but the past few days i cant even load 360p videos! I'm using the ASUS PCE N15 WiFi card with and FX 6300 4GHz overclock, 8GB of RAM, and an HD 7850.... And I can't load a YouTube video! The Asus software says I'm getting -66 dBm and a 54 Mbps speed, but anything I download is super slow and I can not stream videos to save my life, please help!

 

[Tom Tancredi]

1) What sort of internet are you using?
2) Does anyone else have access to your wireless router?
3) Is your wireless router secured with a password to prevent your neighbor from connecting 'free' and hogging your bandwidth?