Region: EMEA
Platforms: LinkStation's HD-HLAN, HD-HGLAN, HS-DGL and TeraStation HD-HTGL/R5, HS-DTGL/R5 and TS-TGL/R5
Reason: Vista is trying to force a more secure authentication method for the LAN manager by using NTLMv2 to log on to the remote SMB share. But NTLMv2 isn't available for the current SMB implementations on all NAS devices using an older version of the Samba server. The connection will be rejected and the user will be asked again and again for user name and password.
Solution:
Open the control panel, make sure you're using the classic view, double click on "Administrative Tools" There is an item "Local Security Policy"- open it.
Alternativ click the start button and type secpol.msc in the search function.
Browse to "Local Policies" -> "Security Options". Now look for the entry "Network Security: LAN Manager authentication level" and open it. Click on the dropdown menu and select "Send LM & NTLM - use NTLMv2 session security if negotiated". Apply the settings.
On Vista Home or Home Premium there is only the way of changing the registry entry. Open the registry editor. (Start- type regedit)
[HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlLsa]
"LmCompatibilityLevel"
Set the value to 2 and if you have further problems to 1. Restart the PC after changing the registry. Otherwise all changes you made are not valid.
Please note that NTLM has security problems.
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