Its a bit unfortunate, that the update process overwrites all user settings in the existing config file.
This caught me too.
It seems that SSL was the reason ...DirkS wrote: ↑Tue Dec 03, 2019 6:35 pmWhich one?
I have no problems reaching https://archive.raspbian.org/
And as @Shift says raspbian.raspberrypi.org doesn't work with SSL. Use http://raspbian.raspberrypi.org