IMPORTANT: Please register your Switch before trying to add it to a firewall.
In order for the firewall to sense the presence of the Switch, the firewall must be setup to add Switches with Zero-Touch.
To prepare the firewall
Navigate to HOME | Dashboard | System | General and check that the firewall Firmware Version is at the most recent level.
Select an interface on the firewall to connect to the Switch. Navigate to NETWORK | System | Interface | Interface Settings and select an interface, then click on the pencil icon.
In the Edit Interface dialog box, select the Advanced tab and enable the Enable Auto-Discovery of SonicWall Switches option, then click OK.
Connect the Switch to the selected firewall interface.
Navigate to NETWORK | System | DHCP Server and verify that the lease scope is correct for the switch attached to the selected interface.
Navigate to DEVICE | Switch Network | Overview. Click on Authorize button to add the Switch to firewall:
The network topology will now appear on the display at Overview | Physical View.