The CSD software suite downloads are made available from a content distribution network that should allow high speed downloads across the world.
If you are experiencing difficulties with the download completing, then you may benefit from use of a download manager which will allow downloads to be restarted if connection is lost. We have found FlashGet appears to work well for this purpose.
If the download link is producing a message that the download server is blocked, then you may have a policy in place that limits access to Amazon Web Services, where our CSDS downloads are hosted. In this case please contact firstname.lastname@example.org in order to obtain an alternative set of download links.