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Thread: Vista Cannot Connect to XP

  1. #1
    Join Date
    Nov 2005
    Posts
    121

    Vista Cannot Connect to XP

    We have a home network with several XP desktops which can all see a workgroup shared directory on one XP machine we use for general storage. Recently we got some new laptops with Vista on them. When we try to connect to the XP based shared folders we can see them in the explorer but when we try to explore or map a drive we are asked for username/password. All the XP based computers can connect with no problem but the Vista ones all fail even when correct username/passwords are entered. And yes we have turned on discovery etc and yes we have tried disabling all Virus and firewall !! This is such a basic thing to want to do you would think that MS would have got it right with Vista!!

  2. #2
    Join Date
    Jan 2006
    Posts
    830

    RE: Vista Cannot Connect to XP

    The default workgroup name in Windows Vista has been changed to WORKGROUP. In Windows® XP Home Edition, the default workgroup name is MSHOME. If you upgrade a computer running Windows XP Home Edition to Windows Vista, it will keep its existing workgroup name. However, new computers with Windows Vista can have a different workgroup name than the other computers on your network. With different workgroups, it takes more time and effort to view all of the computers on the network. More information here - http://technet.microsoft.com/en-us/l.../bb727037.aspx

  3. #3
    Join Date
    Jan 2006
    Posts
    278
    Solution is two fold depending on which Vista you have:

    METHOD 1: Through Local Security Policy:
    NOTE: This feature is for Vista Business, Ultimate, and Enterprise versions only. For Vista Home Basic and Home Premium see METHOD 2 below.

    1. Open Administrative Tools.
    NOTE: In Start Menu or Control Panel (Classic View).
    2. Click Local Security Policy.
    3. In the left pane, click the triangle next to Local Policy.
    4. In the left pane, click Security Options.
    5. In the right pane near the bottom, click Network security: LAN manager
    authentication level.
    6. Click the drop down box, and click Send LM & NTLM - use NTLMv2 session
    security if negotiated.
    7. Click OK.
    8. Restart the computer.

    METHOD 2: Hack the Registry:
    NOTE: This is for Vista Home versions.

    1. Open the Start Menu.
    2. In the white line (Start Search) area, type regedit and press Enter.
    3. Click Continue for UAC prompt.
    4. In regedit, go to: -HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa
    5. In the right pane, right click LmCompatibilityLevel and click Modify.
    NOTE: If it doesn't already exist, create a DWORD value named LmCompatibilityLevel
    6. Set the value to 1
    7. Reboot

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