changing OPNsense hostname breaks Web GUI

[Kat]

Hello, I was updating the hostname of an OPNsense router, going to the new hostname allows me to get to the login screen, but all of the GUI elements are gone and I am unable to select any new pages as they are all blank. I have tried restarting the router multiple times with no luck. Reverting to the old hostname fixes the issue but I want to change the hostname due to changes in my network. The router does resolve in my browser but something breaks inside of the Web GUI, I have tried clearing browser caches and using another device and have the same issues. I have left the hostname changed to see if it would fix itself over time but it does not.

Would anyone know how to fix this or how to proceed with a bug report if this is one?

Thanks

[epimpin]

I am on a brand new fresh install of 25.1, I changed my hostname as one of my first acts but my gui did not experience any ill effects from this as far as I can tell. My system is slower than molasses in january though for unknown reasons as I am new.

I from what I gather from other posts, bug reports can be done on the github?

[Kat]

I had set my hostname during setup and that one works but any changes after initial setup breaks the pannel. I had tried clearing rebooting, resetting browser and using different devices between changes and only the original set hostname works

[Kat]

I would also like to say that this issue only exists with the new router hostname, connecting to the router with the ip does not have this issue.

[OPNenthu]

I had a similar issue with Proxmox after changing the network settings.  It resolved after I generated a new self-signed TLS certificate for it, because apparently that wasn't handled automatically.

Try updating the WebUI cert in OPNsense and removing the exception/override for the old self-signed cert from your browser settings.

[Kat]

unfortunately it seems that renewing the cert didn't fix the issue, I may have to just reinstall

[Patrick M. Hausen]

What is the new hostname?
What IP address does it resolve to?
Did you change the listen interfaces for the UI in any way?
Are you running unbound as a recursive DNS server?
Do you have registration of local interfaces in DNS enabled?
Did you create a host override for the hostname you picked?

Etc.

Why do you think reinstalling would fix anything? This is not Windows. Try to answer the questions as good as possible.