Install fails with at downloading gpg keys

Hello I tried to install Cloudmin on a fresh installed centos 6.4 server (64 bit). I installed al the updates via yum withoud problems.

This is the response: [root@DA-EXT004 ~]# sh install.sh

• Welcome to the Cloudmin installer, version 1.1 *

Operating systems supported by this installer are:

Fedora Core 3-12 on i386 and x86_64 CentOS and RHEL 3-6 on i386 and x86_64

If your OS is not listed above, this script will fail (and attempting to run it on an unsupported OS is not recommended, or...supported). Continue? (y/n) y

Checking for yum .. .. found OK

Installing wget .. Loaded plugins: fastestmirror Loading mirror speeds from cached hostfile * base: centos.digitalnova.at * extras: mirrors.pidginhost.com * updates: mirrors.pidginhost.com Setting up Install Process Package wget-1.12-1.8.el6.x86_64 already installed and latest version Nothing to do .. done

Checking for curl or wget... found /usr/bin/curl -s

Validating Cloudmin serial number and key .. .. done

Creating Cloudmin licence file .. .. done

Downloading GPG keys for packages .. .. download failed [root@DA-EXT004 ~]#