If you are having problems with internet connection, you may want to replace your wireless network card on your HP Mini 311.
Lay the laptop on a flat surface, bottom side up and slide the two battery release latches toward the outside of the case.
Slide the battery away from the device to remove.
With the device still in a bottom side up position, proceed to unscrew the two 4.8mm Phillips 00 screws from the memory shield.
Lift the memory shield up and remove from the laptop.
Begin by removing the red and blue wires from the wireless card.
Remove the two Phillips 00 3.8mm screws attached to the wireless card.
Lift up the unattached side of the wireless card and pull out to remove.