The network administrator just upgraded all of the WAPs to new ones with 2.4 GHz b/g/n support. The new WAPs reuse the same location and channel as the previous one and with no new external interference detected. However, performance issues are now occurring that did not exist before. Which of the following would correct the issue?
A. Configure Wi-Fi Multimedia support
B. Use only 20 MHz channel bandwidth
C. Enable band steering to use 802.11n
D. Configure Quality of Service
