I am using netgear wireless adapter but recently it has been having troubles keeping a connection, does anyone have any advice how I can fix this?

I have also been trying to access some of my favorite websites at school but every time I try to, I keep running into the Novell Bordermanager. The sites that I am trying to access are not actually bad websites but they have been blocked recently because of... productivity. Does anyone know any loop holes that I could use to get through this?