Docker Pull Completely Disables Internet in Ubuntu 17.04

$ lsblk -a
Distributor ID: Ubuntu
Description:    Ubuntu 17.04
Release:        17.04
Codename:       zesty

$ docker -v
Docker version 17.06.2-ce, build cec0b72


$ docker pull bossjones/boss-docker-jhbuild-pygobject3

Here docker will start to pull the image. But after somewhere between 30 seconds and a minute, docker seems to block all outgoing connections for all network interfaces. Connections continue to be blocked until I stop docker and restart the network manager.

I have my system set up so that all requests are routed through a VPN. Would this have something to do with it?

Thanks.

Not sure what I did (besides restarting docker service again) but the images downloaded, and I still have Internet.