I share an unsecured network with my next door neighbor (she knows and we pay half the bill). The Norton Antivirus trial ran out on my new Sony VAIO laptop. Immediately after, it stopped connecting to our network (and any other unsecured network). I've tried turning off Windows Firewall, turning off Windows Defender, did a system restore, uninstalled Norton, used the Norton removal tool, installed and uninstalled another antivirus program (the one that Google Apps recommends... starts with an I), verified the wireless switch is turned on, rebooted my computer, did every update for both Windows and VAIO, booted in safe mode w/ networking, created a new profile... nothing is working!!!! I know hardly a thing about IT and desperately need help b/c I work from home on my laptop. I know it's not my neighbor's router b/c she restarted it and my Wii, desktop, cell phone and Nook reader all hook up to it just fine. When I turn my cell phone into a wifi hotspot, my laptop hooks up just fine to it but it's eaten my broadband on my phone. Help!!!!!!!!!