Home network. Desktop will not connect. Windows XP. Laptops still connect perfectly. Recently switched from IE to FF. Worked fabulously. Uninstalled old programs including AOL and Norton System works. Downloaded and installed AVG Free. Then there was no connection. Removed AVG Free. Still no connection. Have disabled all visible firewalls and FF Add-ons. I feel like it is some thing simple that I am overlooking. Any Ideas will be appreciated.