Hi, The workaround I've found is to put:
disable-ipv6 in ~/.gnupg/dirmngr.conf. It's a pity that IPv4 isn't supported by default anymore, because some people disable IPv6 on their boxes *precisely* for security reasons---following the same logic that leads one to only install the server software one needs, and only open the needed ports on a firewall, no more. Regards -- Florent