I have a computer that I got from school to use for classes (I attend a cyber school), and it came with a wireless card already in. As soon as I turned it on, it connected to the wireless network in my home but it will not load any webpages, not even the school's homepage, or the page I use to login to take my classes. I've tried turning off the firewall because that fixed a problem with a home computer, but it didn't work. Are there any fixes I can try without downloading software? I'm not able to download any programs because the computer is to be used strictly for schoolwork. I was able to get onto the school's website once, and it never worked again. I've also called tech support but I'm waiting for them to call me back, and I was wondering if there's anything I can try to see if I can get it fixed before they get back to me. Thanks!