Does anyone know what happens when you re-enable SMBLeasing. It was a fix to stop back end databases going into an inconsistent state when used with Windows 10 and office 365 but apparently it can cause network speed issues. I have a client that can only use one front end out of three. One works perfect but reduces the access speed down to intolerable levels on the other two. I have applied every other fix I can see but problem persists. I just wondered if the fix below would still need the SMBLeasing turned off?