SonicOS 8 Internal Wireless

5GHz 802.11a Wireless Settings

When the Radio Mode is set to 802.11a only, configure the following options:

Channel The channel the access point uses for communication. By default, the channel is set to Auto. This allows the appliance to automatically detect and set the optimal channel for wireless operation based on signal strength and integrity. You can select a single channel within the range of your regulatory domain. Selecting a specific channel can also help the appliance avoid interference with other wireless networks in the area.
Enable DFS Channels Enable this toggle button to allow wireless devices to share the 5 GHz spectrum with existing radar systems.

After configuring this option, follow Step 4 in the 5 GHz Radio Basic Settings.