Band Steering: This technology encourages capable devices to use the faster and less congested 5 GHz band. It ensures clients automatically connect to the most optimal frequency, enhancing speed and performance. Disabling the 5GHz SSID (B): Prevents access to the fastest network, defeating the purpose. Adding a captive portal (C): Captive portals control access but do not affect network speed. Configuring MAC filtering (D): Restricts access but does not influence network selection.