Disable NTLM1
Principle
NTLM authentication refers to a set of authentication protocols included in the Windows Msv1_0.dll library. NTLM authentication protocols include LAN Manager versions 1 and 2, and NTLM versions 1 and 2.
Their purpose is to authenticate users and computers based on a stimulus/response mechanism designed to prove to a server or domain controller that a user knows the password associated with an account. (Source : https://learn.microsoft.com/fr-fr/windows-server/security/kerberos/ntlm-overview)
To install Watchdoc v6.1, it may be useful to disable NTLM v1 in favor of NTLM v2.
Procedure
To disable NTLM v1,
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from the Watchdoc server, go to the registry editor;
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in the editor, search for the key Computer\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0
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for the NtlmMinClientSec key, right-click and select Modify ;
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in the edit box, in the Value data field, enter the value 537395200 ;
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tick Base Decimal ;
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click OK to validate the new key value ;
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repeat this operation for the NtlmMinServerSec key.