THE TEAL CYAN BANNER LIES! P.S. SMB is still bad. If you are new to this thread, read this entire OP for more.
This link will take you to a proper guide on how todo the workaround.
Also, should have prob edited this in earlier, but @[DE]Glen has already commented on this thread; says that a fix is coming soon (prob Monday if I had to guess)
2nd EDIT: It has been identified that you can disable SMB after you login.
This is the manual method (and is slightly inaccurate and NetLogon and Server aren't required).
Click Here for the "on" and "off" batch files.
A hotfix patch is on the way... But in the meantime
If you are experiencing issues, the problem is the Workstation service, the Server service, and the NetLogon(?) service.
Enable them (in the "services.mcs" application), launch the game, log in, and then disable them. (it's only require