Fixed by my self !
it was an issue with iptables that has been broken by the apt-get dist-upgrade (OS patching)
To fix you need to flush iptables to go with the default, restart docker and it will recreate the needed docker rules … be aware that if you have additional iptables rules you need to apply them again.
ubuntu@hpool2:~$ sudo iptables -F
ubuntu@hpool2:~$ sudo iptables -X
ubuntu@hpool2:~$ sudo iptables -Z
ubuntu@hpool2:~$ sudo iptables -P FORWARD ACCEPT
ubuntu@hpool2:~$ sudo iptables -P INPUT ACCEPT
ubuntu@hpool2:~$ sudo iptables -P OUTPUT ACCEPT
ubuntu@hpool2:~$ sudo service docker restart
Thanks