Which mode is not supported by WatchGuard AP devices on the 5GHz band?

WatchGuard AP devices do not support 802.11 G mode on the 5GHz band. This is because 802.11 G is specifically designed for the 2.4GHz frequency range, providing a maximum data rate of 54 Mbps and compatibility with 802.11 B devices. In contrast, the 5GHz band utilizes different standards that offer higher data rates and reduced interference, such as 802.11 A, 802.11 N, and 802.11 AC. These standards improve performance by operating on a less congested frequency and allowing for more channels. Therefore, while the other modes—802.11 A/N Mixed, 802.11 A, and 802.11 AC—are fully compatible with the 5GHz band, 802.11 G is not applicable in this context.