From RO2 facebook page:
"Dear Asgardians, we are extremely grateful for your tremendous support towards RO2 and for all your help in stress testing the game servers since last night.
After long and careful deliberation, we will be rescheduling Open Beta to 3RD JANUARY 2013 (opening time to be announced sooner to the date). This additional week will allow us to stress test the game servers as much as we can and to resolve all the technical issues you’ve been facing. We want to make it right and we hope you will continue helping us to get there, by participating in the occasional stress tests that we will conduct from now until 3rd January.
Unfortunately, A CHARACTER RESET will also be performed before Open Beta starts on 3rd January 2013. We know that this will displease many, but it is important that we be fair to the majority of our players who were unable to join us yesterday.
This was a difficult decision for us to make but rest assure that we will make it up to all of you (full details also to be announced later), in gratitude for your continuous support and understanding. Please refer to this Facebook note for the full message from our Chairman: https://www.facebook.com/notes/ro2/open-beta-extended-to-3rd-jan-2013-a-message-from-our-chairman/144994925652540
With the dawn of a new year approaching, we hope you will have a wonderful 2013 with your loved ones and we welcome you to join us on a fresh new journey with RO2 on 3rd January.
Thank you all, from the bottom of our hearts."