Ubuntu
software-properties package

  1. Bug #443404
  2. Comment #13

Comment 13 for bug 443404

Revision history for this message
Kristian Kißling (kkissling) wrote : Re: add-apt-repository insists on downloading GPG key even if keyserver is down. If keyserver is down, add-apt-repository can't proceed.

It seems this problem also occurs, if you don't configure your firewall right. I allowed outgoing TCP/UDP connections on port 11371 and everything worked fine afterwards.