Reset lan manager Authentication Level back to "not defined"

[Jeff Maxwell]

How can I set the Lan Manager Authentication level back to "Not Defined" in Windows 10 pro?
Network Security: LAN Manager authentication level”.
I changed it to another value while trying to troubleshoot a network connection issue and now my
Win 10 Pro client cant contact the domain controller to authenticate for domain access.
Any ideas?
Thanks
Jeff

 

[Wolfie]

Hi Jeff,

I don't know myself, maybe you can start with the following links?:

https://www.digitalcitizen.life/how-reset-all-your-windows-10-network-adapters-just-6-clicks

https://docs.microsoft.com/en-us/wi...ork-security-lan-manager-authentication-level