Hi Carlos Thank you for taking the time to report this bug and helping to make Ubuntu better.
As per Torsten's comment it would be great to see the output of euca- describe-groups for the security group associated with the instances you are trying to access. Thanks ** Changed in: eucalyptus (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to eucalyptus in Ubuntu. https://bugs.launchpad.net/bugs/757258 Title: Unable to reach instances from their public IP address -- Ubuntu-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs