Bug#879906: gnome-session: freezes after start when network is up but under captive portal

[Jeremy Bicha]

On Thu, Nov 2, 2017 at 2:12 AM, Cyrille Chépélov <cyrille at chepelov.org> wrote:
> The bug is still reproducible under GNOME 3.26.1, under the exact same
> conditions (including the Paris→Lyon TGV route), and so is the
> (inconvenient) workaround.

Do you have network-manager-config-connectivity-debian installed?

Thanks,
Jeremy Bicha