Windows Server 2008 Share Not Accessible

So, for troubleshooting purposes, mostly in an environment that has mixes operating systems, you might want to consider disabling SMB 2.0. You need to do so on both the "client" and the "server" operating systems.

To disable SMB 2.0 for Windows Vista or Windows Server 2008 systems that are the “client” systems run the following commands:

sc config lanmanworkstation depend= bowser/mrxsmb10/nsi
sc config mrxsmb20 start= disabled

Note there's an extra " " (space) after the "=" sign.

To enable back SMB 2.0 for Windows Vista or Windows Server 2008 systems that are the “client” systems run the following commands:

sc config lanmanworkstation depend= bowser/mrxsmb10/mrxsmb20/nsi
sc config mrxsmb20 start= auto

Again, note there's an extra " " (space) after the "=" sign.

In order to disable SMB 2.0 on the server-side computer, follow these steps:

• Run "regedit" on Windows Server 2008 based computer.
• Expand and locate the sub tree as follows. HKLM\System\CurrentControlSet\Services\LanmanServer\Parameters
• Add a new REG_DWORD key with the name of "Smb2" (without quotation mark)

    Value name: Smb2
    Value type: REG_DWORD
      0 = disabled
      1 = enabled

• Set the value to 0 to disable SMB 2.0, or set it to 1 to re-enable SMB 2.0.
• Reboot the server.