You manage a WLAN with 100 802.11ac access points. All access points are configured to use 80 MHz channels. In a particular BSS, only 40 MHz communications are seen. What is the likely cause of this behavior?
You manage a WLAN with 100 802.11ac access points. All access points are configured to use 80 MHz channels. In a particular BSS, only 40 MHz communications are seen. What is the likely cause of this behavior?
The presence of only 40 MHz communications indicates that the clients in the BSS are likely all 802.11n STAs (Stations) or lower. 802.11n supports up to 40 MHz channel width, whereas 802.11ac supports wider channel widths like 80 MHz or even 160 MHz. If no 802.11ac clients are present, the access point would downgrade its channel width to 40 MHz to accommodate the clients' capabilities.
B is correct. 802.11n can only reach a maximum of 40 Mhz channel width.