An administrator is analyzing a wireless network and observes that some access points operating on the 2.4 GHz band are experiencing high levels of co-channel interference. Which of the following changes is MOST likely to reduce the interference and improve the network's performance?
Move the access points closer to the center of the areas they serve.
Conduct a site survey to place additional access points.
Change some access points to use non-overlapping channels.
Decrease the power settings on all the access points.