What is NetServer Authentication and

If a client provides a LANMAN and an NTLM hash, only the NTLM hash is used unless the QZLSPWDANY$ share exists (or NetServer is configured to allow LANMAN authentication). This is because the NTLM hash is more secure. If only a LANMAN hash is provided (as was done by Windows 9x), that hash is used. NetServer does not support LMv2 hashes; therefore, LMV2 always fails. NTLM and NTLMv2 hashes are always accepted (with the restrictions in the table above) unless NetServer is configured for Kerberos-only authentication.

The QPWDLVL of the system does not affect the hashes that NetServer can accept. The thing that it does do is make the NTLM style hashes work with mixed-case Windows passwords. This is possible with QPWDLVL 2 and 3 because the system password can be mixed-case.

NetServer does not indicate to Windows to send a specific type of encryption. The only thing the server tells the client during the Negotiate is if extended security is supported by the server. The client will then try to negotiate whether to use Kerberos or password hashes. At no point does NetServer tell the client what form of password hash to use nor is there any way that NetServer could tell the client what form to use.

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Uninstall Local Area Connection

Before we start haphazardly changing our Local Area Connection Properties, let's see what is the difference between enabling or uninstalling the connection properties.

Disable a Property Item:

Disabling a property item means it's no longer binded to the connection you're adjusting. This is the preferred method as opposed to full uninstallation since you can easily re-enable a property item if it's needed in the future - such as; you install a local network to share files from one PC to another and need File and Print Sharing enabled. If you just use your PC to access the Internet and never intend to create or join a network, consider uninstalling some items.

Uninstall a Property Item:

If you fully uninstall a Property item, the Windows queue will be reduced while accessing Internet routines. Admittedly, the speed increases of uninstallation versus disabling will be negligible. However, a property item may act as a filter or longer path for each Internet action, so there has to be something said for less computation (less error risk) while moving data to and from the Internet and your PC.

Find more information : lanman server