NEED WITH HELP OPNSENSE CONFIG.(Modem>Opnsense firewall>managedSwitch>OpenwrtAP)

[iwanttolearn]

Hi everyone.

Im tryinging to install a opensense firewall for about 1 and a half year now without succes. I have wasted countless hours trying and watching all yt content without succes. Both HomeNetworkGuy's 2025 and old guides, sheridan computers videos you name it. I dont even know why and what im doing wrong. Last year at new years eve i finally had a IP Lease but i noticed it after restarting the firewall appliance. The setup goes like this: modem>(protectli)Opnsense firewall>(Zyxel) managed switch> Openwrt AP. I dont know if im doing it wrong on the Opnsense firewall, the zyxel managed switch or on the Openwrt AP im configuring.

Can someone help me out with this task since i tried by myself for about a year now and cant pull it off. Im using the GUI (NO COMAND LINE) to do it.

[Patrick M. Hausen]

How is your Internet uplink supposed to work? DHCP? PPPoE? That information can come from your ISP only. Or from examining a working device if you have access to its admin UI.

You must know this upfront or no YT video is going to help you. There are settings very specific to your ISP and the "Internet" product you rented alone.

[iwanttolearn]

I have PPPoE if im not wrong. On the site it said:

Annex: A
Mode: PPPoE.

Side question.
Is it a must to be connected to the internet to configure Opnsense and get a IP LEASE ?