|It solved my issue|
... here is the solution.
open file /etc/sysctl.d/bindv6only.conf and set net.ipv6.bindv6only=0, then restart the procfs with invoke-rc.d procps restart
here are the corresponding bugs
This wasted quiet some time for me, so I thought I'd warn you.
It happens if you update package netbase to 4.40 and it can affect other apps too, especially if they are not from the debian repos.
A real debian special ...