Performing a full factory reset on a FortiGate 30D is a straightforward process if you understand the correct method for your specific situation: the GUI reset, the physical button, the CLI command, or the advanced BIOS/TFTP recovery. By following this guide, you should be able to restore full functionality, clear old credentials, and have a clean slate for reconfiguration.
Configure your computer's ethernet adapter with a static IP in the same subnet (e.g., 192.168.1.100 , subnet mask 255.255.255.0 ). fortigate 30d factory reset full