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I cannot connect to shares using the old NTLM v1 authentication?

April 26, 2017authentication Connect NTLM Shares v1

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I cannot connect to shares using the old NTLM v1 authentication?

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Windows vista uses NTLMv2 by default which is more secure than the old NTLM method. You can change the authentication using the Security Policy editor (secpol.msc) in Local Policies, Security Policies, Network Security. If you do not have access to secpol.msc, then you can change the registry for LSA services in HKEY_LOCAL_MACHINE\System\ CurrentControlSet\Control\Lsa and change the LmCompatibilityLevel from 3 to 1 (use NTLMv2 secuity if negotiated so you can use both systems). See KB 823659.