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เจอปัญหา Vista ไม่สามารถ access เข้า Samba ได้
วิธีแก้ก็ตามนี้เลย

1. Click "Start -> Run."
   
   
2. Then, type in the Run field: "secpol.msc." That will bring you to Vista's security policy system.
   
   
3. Once there, use "Go to: Local Policies > Security Options"
   
   
4. and then find "Network Security: LAN Manager" authentication level.
   
   
5. Once there, change the Setting from
   "Send NTLMv2 response only" to "Send LM & NTLM -- use NTLMv2 session security if negotiated."

เจอมาจาก http://www.linux-watch.com/news/NS4434907782.html

update

If you're running a version of Vista that cannot use secpol.msc, you can edit the registry instead. Just change the value of HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\LMCompatibilityLevel from a 3 to a 1.