Cant Access Web Gui

Started by colin299, January 17, 2026, 11:48:07 PM

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I have just freshly installed Opnsense on a ProtectLi vault. I have gone through and assigned the correct interfaces in the opnsense software. Both my computer I am trying to access the GUI from and the software are set on 192.168.40.x IPs with the same subnet. When I enter the shell on opnsense to ping my PC it says that the host is down. And when I try to ping the GUI from my PC I get nothing. I dont know if this is a firewall issue or not. If it is, I have no idea how to fix it. I am at a loss and would appreciate any help.

I suggest you start with the default configuration:

- Install OPNsense, don't change anything.
- Connect your PC to LAN - which is the first, not the second interface in OPNsense.
- Set the PC to DHCP for IP.

The PC should get an IP address in the 192.168.1.0/24 network and you should be able to access the UI at https://192.168.1.1

Only start changing things once that works.
Deciso DEC750
People who think they know everything are a great annoyance to those of us who do. (Isaac Asimov)

Okay I just reset everything to default and now it is making progress. I am able to get somewhere but it says "The HTTP_REFERER "https://forum.opnsense.org/" does not match the predefined settings. You can disable this check if needed under System: Settings: Administration."

Don't click on the link in my post but simply enter the URL into your browser's address bar ...
Deciso DEC750
People who think they know everything are a great annoyance to those of us who do. (Isaac Asimov)