An update.
I am still trying. I reinstalled OPNSense from scratch, ran the wizard, same thing. Installed pfSense from scratch, ran the wizard and it works. So this seems to be an issue related to OPNSense. I will stay with pfSense (that is working out of the box) in the meanwhile.
I am still trying. I reinstalled OPNSense from scratch, ran the wizard, same thing. Installed pfSense from scratch, ran the wizard and it works. So this seems to be an issue related to OPNSense. I will stay with pfSense (that is working out of the box) in the meanwhile.