We have noticed a bunch of forum posts that players are reporting that Rainbow Six Siege multiplayer servers ar crashing
Error codes [6-0x00001000] and [2-0x0000D0012] are being reported.
Others are reporting lag problems which is typical of servers being too remote from players. Some complained of an abandoned game penalty too,
Ubisoft is aware of the problem and they are looking over the code base in an effort to identify what is causing the errors.