Here's the link to the
original article on
Macrumors.comBut here's the key info:
*Windows Server 2003 AuthenticationBy default Windows Server 2003 will try to encrypt everything sent to and from it. With this enabled you will not be able to log in to the share from the Mac.
To fix this there are a couple of things you need to do.
First; open up regedit (Start > Run > "regedit" {return}), and navigate to HKEY_LOCAL_MACHINE \ System \ CurrentControlSet \ Services \ LanManServer \ Parameter \ RequireSecuritySignature, and set its value to "0".
Second, if the server is also a Domain Controller; you need to open the DC's Security Policy (Administrative Tools > Domain Controller Security Policy). Navigate to Local Policies > Security Options, and disable "Microsoft network server: Digitally sign communications (always)" & "Microsoft network server: Digitally sign communications (if client agrees)".
Reboot the sever, and you should be good to go.