It might be that .3 is not enabled on your dongle for the auto update. If it is and you have issues downloading it then your issues might be related to the server connection, especially if you are outside Europe. We are in Australia and downloading anything from 3shape's servers is incredibly slow - I am talking about 4-5 kb/s sometimes. We never use the auto update for that reason as the download takes way too long and often times out in the background without the user noticing it.
Ask your distributor if they can provide you with a direct download link from their own servers hosted in your country (at least that's what we do).
Regards,
Dominic