The Require NTLMv2 session security option for the Network security: Minimum session security for NTLM SSP based (including secure RPC) clients setting should be enabled or disabled as appropriate. Specifies the prescribed value for 'Require NTLMv2 session security' option for the 'Network security: Minimum session security for NTLM SSP based (including secure RPC) clients' setting Fix: (1) GPO: Computer Configuration\Windows Settings\Security Settings\Local Policies\Security Options\Network security: Minimum session security for NTLM SSP based (including secure RPC) clients (2) KEY: HKLM\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0\NTLMMinClientSec