When the client connects in this situation you are creating a signed session.
Microsoft has a blog post explaining the effects of the GPOs on SMB signing that explain the behavior your seeing: https://blogs.technet.microsoft.com/josebda/2010/12/01/the-basics-of-smb-signing-covering-both-smb1-and-smb2/ Nathan Shelby Director of Information Technology ā Quote Wizard <https://quotewizard.com/> [email protected] / 206-753-2626 Malo Periculosam Libertatem Quam Quietum Servitium On Mon, May 16, 2016 at 7:01 AM, Charles F Sullivan < [email protected]> wrote: > In troubleshooting a CIFS/SMB issue, I am trying to configure SMB signing > to cause a failed connection. > > - On the server (Windows 2012 domain member), I have SMB signing > disabled. Server ā Digitally Sign Communications (always): Disabled | > Digitally Sign Communications (if client agrees): Disabled > > - On the client (Windows 7 non-domain member), I have SMB > signing required. Client ā Digitally Sign Communications (always): Enabled > | Digitally Sign Communications (if server agrees): Enabled > > > > I did remember to reboot after making any changes to these settings. > > > > When I type \\fileserver from the client, I get prompted for credentials, > enter the credentials and make a successful connection. The account has > write access and Iām able to copy a file to the share, delete, etc. Does > anyone know why this would succeed? > > > > Charlie Sullivan > > Sr. Windows Systems Administrator > > Boston College > > 197 Foster St. Room 367 > > Brighton, MA 02135 > > >

