Use a third party BitTorrent client (I use uTorrent [AKA: Microtorrent]). In ../users/name/my documents/my games/FFXIV beta blah/downloads/patch folders/metadata you'll find you already have the .torrent file as is. Just open it in another torrent client and you're good to go. Pop the file into the directory per standard and it should punt you through.
The good news is that it means it isn't a network issue, but a technical "stumbling" of the patcher.
The good news is that it means it isn't a network issue, but a technical "stumbling" of the patcher.