1. On the teacher Dell E5420 laptops there is a wireless switch located under the mouse pad on the front edge of the laptop. Slide it to the left to turn the radio off then back to the right to turn the radio back on.
  2. On student Vostro laptops press the FN & F2 keys to toggle off and FN & F2 to toggle the radio back on
  3. This will make your laptop connect to the closest access point with a stronger signal.