The thing I found is if you actually install and switch on the firewall before you connect the computer to the internet the firewall blocks the internet. Try switching the firewall off and if it doesn't work inform us please.
After a complet format of the HDD following a boot sector virus, my Atheros ar5005 wireless will not connect to my network. The icon shows a message of detecting networks but when I highlight it and try to go to network it says there are no networks to be found. All diagnostics show proper configuration and device is working properly and the driver is current
Toshiba Satellite L25-s1192
Windows Xp Home SP3