I have downloaded the factory default config file (default-config-123x.cfg) from the Support section. I performed a factory reset using CLI but still cannot access the GUI following all the instructions step by step. I have made numerous attempts at activating the GUI with instructions from this site as well as many I found doing Google searches. Most of the line commands return an error message stating command is unrecognized. Every command from "no ip firewall" to "end" fails as unrecognized.
I would greatly appreciate a step-by-step that works or a link to same that will show me how to upload and install the factory default config using the CLI.