I booted the box to console, ping from the box worked but ping to the box didn’t.
I have mixed environment Mac and Linux.
Reboot leaves only console access to the box, no ssh no browser.
Networkig crashes with reboot, Freedombox is alive but unusable.
I had upgraded both Freedombox and Raspberry Pi 4 before.
I have had a working Freedombox on Raspberry Pi 4 in about a year.
I tried installing to a new Debian Raspberry Pi image but that didn’t work either.