Which action can help improve wireless network performance by minimizing interference in a dense office area?

Selecting an appropriate channel for a wireless network can significantly enhance its performance, particularly in environments where multiple access points and devices may be competing for the same frequency. Changing the channel settings allows you to select a channel that is less congested and has fewer overlapping frequencies with nearby networks. This is particularly effective in a dense office area where multiple routers might be operating on the same or similar channels, creating interference that hampers connectivity and speed.

In contrast, reducing signal strength may limit the range and accessibility of the network without addressing underlying interference issues. The option to disable auto channel selection can lead to the network being stuck on a channel that may not be optimal, especially in environments where channel congestion can frequently change. Rebooting the access point could temporarily resolve issues, but it does not directly address the interference or optimize the channel settings for long-term performance. Therefore, altering the channel to reduce interference is the best approach in this scenario.