If you are still having issues with registering on the beta server check the following.....
- There was an issue at the start but it has been fixed
- There is a pattern though of the key working on the second attempt if the 1st did not work.
- When you are copying your key make sure and only grab the numbers only and not any empty spaces.
(in the image below you can see how my copy went past the numbers to grab empty spaces and when you paste,
those empty spaces are read as part of the key which will make it invalid)
If you are still having some major issues trying to register give me a shout and maybe I can help.
Just be prepared with patience as it is pretty busy today.