OPNsense Forum

English Forums => 25.7, 25.10 Series => Topic started by: justjake on March 23, 2026, 07:09:24 PM

Title: Router not having WAN access
Post by: justjake on March 23, 2026, 07:09:24 PM
Hello there, please may I have some help?

My opnsense router is not conencting on WAN

I have a router behind a router setup, out of strict necessity. It worked fine. It was plugged into the ISP router, and had a dumb switch plugged in with all my devices plugged in. I will upload screenshots of my setup but it is very basic. I know Opnsense isn't meant to be a router, it's just something I found recomended on the internet. The VLAN part isn't active, I started the first step of making one and realised it was too complicated and not necessary. I have two NIC ports, the MOBO one goes to the ISP router, the other one goes to the dumb switch. The ISP router isn't showing the Opnsense as a connected device. My PC is connected to the dumb swicth but is falling back to wifi, yet can also connect to the media server that is on the dumb switch, so LAN access is fine. The opnsense just stopped doing WAN after weeks of uptime. I have cable tested EVERYTHING, I even pulled the ethernet socket out of the wall and checked for crossed wires it was fine. For now if I want stable ethernet I just plug my PC into the wall that the Opnsense would be and just use that, but lose my homelab. It's a very simpel setup really. I'm no tech expert and I only built this thing because other managed switches weren't working either.

Please may somebody help?
Title: Re: Router not having WAN access
Post by: justjake on March 23, 2026, 07:13:45 PM
A few more screenshots.
https://ibb.co/v498Wx1H
https://ibb.co/YFt7dDh9
https://ibb.co/DfjBT1k1
Title: Re: Router not having WAN access
Post by: nero355 on March 23, 2026, 07:27:22 PM
Maybe related, Maybe not :

Feel free to ENABLE the option 'Prevent Interface Removal' for all your Interfaces just to be sure nothing weird happens to them for whatever reason :)
Title: Re: Router not having WAN access
Post by: Patrick M. Hausen on March 23, 2026, 07:29:29 PM
Quote from: nero355 on Today at 07:27:22 PMFeel free to ENABLE the option 'Prevent Interface Removal' for all your Interfaces just to be sure nothing weird happens to them for whatever reason :)

Nice interface you got there. 'd be a shame if something happened to it 😎
Title: Re: Router not having WAN access
Post by: justjake on March 23, 2026, 07:32:26 PM
Ok, done that. When you make changes like this, is rebooting necessary? I frequently reboot after hitting "apply" and wonder if it is required.
Title: Re: Router not having WAN access
Post by: nero355 on March 23, 2026, 10:45:51 PM
Quote from: Patrick M. Hausen on Today at 07:29:29 PM
Quote from: nero355 on Today at 07:27:22 PMFeel free to ENABLE the option 'Prevent Interface Removal' for all your Interfaces just to be sure nothing weird happens to them for whatever reason :)
Nice interface you got there. 'd be a shame if something happened to it 😎
LOL! NICE! ^_^

Quote from: justjake on Today at 07:32:26 PMOk, done that. When you make changes like this, is rebooting necessary? I frequently reboot after hitting "apply" and wonder if it is required.
Should not be necessary.