An old problem has resurfaced with Linksys NAS devices and Vista, perhaps it occurs with other NAS devices as well. I believe this was fixed in Windows 7, but wanted to post this in case anyone is still experiencing this issue. Your NAS is almost certainly using CIFS, and Vista’s CIFS uses SMB2. By default Vista will only authenticate using NTLMv2, which, although not quite as good as Kerberos, is good in and of itself from a security standpoint, but is bad when trying to talk to your Linksys NAS that probably wants LM/NTLM, aka hashed password that can be cracked.

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