hoholulo,   In addition to what Elijah stated...   Start, control panel, device manager. Click on Network and then right click on your wireless adapter, left click properties, power management. Uncheck the box, allow computer to turn off this device to save power.   Then click on the advanced tab and look to see if this adapter has antenna diversity. If it does, then change it from Auto to Aux.   Restart your computer and try to connect.     Rick    
My Inspiron 1750 runs Window 7 with Dell wireless 1397 WLAN mini card installed. It suddenly now cannot get internet nor network connection. The troubleshooting says WIRELESS CAPABILITY TURNED OFF. How can I turn it on and keep it always on?
wireless capability turned off