I have a fresh 26.1 install under a qemu/kvm virtual machine on arch linux (not proxmox).
I have previously been using 25.1 with no hiccups and no initial config errors from what I can remember. Using that 25.1 image there are no errors and I can reach the WAN (just a NAT bridge) and then the internet just fine - making me certain this is not a DHCP server issue.
I have read and read the install docs and watched countless install videos, so I am pretty sure this is not just a trivial problem. I hope I dont waste everyones time and that someone is able to help.
Thanks :)
Edit:
After some more troubleshooting, what makes me to believe this is actually a virtual networking setup issue and not something with OPNsense itself is me reinstalling 25.1, then importing a backed up config into it. Everything else works, just no WAN DHCP IP.