An open beta for Rainbow Six Siege was scheduled to begin today across all platforms, however at the last minute Ubisoft announced that the beta has been delayed to a later time. No reasons were given outside of issues with matchmaking.
Here is what Ubisoft had to officially say about the delay:
We’re currently seeing issues with matchmaking times and disconnection on all platforms. As such we’re postponing the Open Beta until a later time and keeping the game under Closed Beta status. We apologize for the delay and can assure you this is our top priority. We will keep everyone updated regularly as we continue to deploy improvements.
Game sessions are not starting properly and we’ve encountered server deployment issues, leading to failed connections. We’ve identified the root issue that was introduced after the Technical Test while fixing a separate aspect of the game. A fix is currently under test and will be deployed within the next few hours.
Rainbow Six Siege is scheduled for a December 1, 2015 release on PC, PS4 and Xbox One.