Ubisoft Support has confirmed that it is aware of the issues and has told fas on Twitter: It appears the problems have been intermittent for players over the last three days, with many complaining of issues with the servers being unavailable or games being spoiled mid-match as the servers encounter problems. Rainbow Six Siege servers appear to be down for many PS4, Xbox One and PC players currently with many people across Twitter, Reddit and various other social forums reporting issues.