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Why can't access NAS share (SMB) using Vista?

Article ID: 332
Last updated: 27 May, 2009


I can access my NAS share using Windows XP but I cannot access a samba share from Vista. It asks for user name & password but then still it won't allow access. I have another samba server on the network which I am able to access and it doesn't ask for user/password. Any I am using ADS.


Try to run secpol.msc

Go to: Local Policies > Security Options

Find "Network Security: LAN Manager authentication level"

Change Setting from "Send NTLMv2 response only"


"Send LM & NTLM - use NTLMv2 session security if negotiated"

Vista defaults to only send the more secure NTLMv2 protocol, which some NAS devices / Samba do not support.

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Article ID: 332
Last updated: 27 May, 2009
Revision: 1
Views: 6156
Posted: 27 May, 2009 by --
Updated: 27 May, 2009 by
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