Cannot access windows XP share from windows machines 7.

I have a windows XP computer on my home network that has long been used as a mass storage server. I have several terabytes in there and its all raid 1 and backed on the outside for added protection of data. Problem is that I looked suddenly being able to access its actions of any computer windows 7.  I have 3 other computers. Two of them are W7 and a laptop that works under XP. Stocks can still access the XP laptop, and both machines of W7 used to access it is fine. Two W7 machines stopped working at the same exact time. Telling me that its a setting changed on the server that W7 does not like, or an update to W7 was pushed down and changed the way which it networks.

I can still see the computer on the network, it is the ping requests by both IP and host name. Only, I can't access the share. It will ask for a password but then does not accept the credentials that I KNOW are good and are used to access it.   I have even gone now log on to the server "" and add a new user has given all the permissions tab share permissions and NTFS file permissions tab.  I even added "everyone" and "invited" both with all the permissions and it still leaves W7 access its files.

I'm actually fairly well informed in what I do and networking for a living, I don't have W7 in my workplace in order to not experienced with the nuances of how it networks.

I looked online for tutorials but they ALL seem focused on access to W7 "Home groups" of XP that is not what I need at all.

If anyone cares to know the solution is that the date on my server some how changed... apparently this prevent Win7 for authentication.

Tags: Windows

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    http://groups.Google.com/group/Microsoft.public.WindowsXP.General/MSG/a066ae41add7dd2b

    Tip: After getting the computer fully patched, download/install KB971029 manually: http://support.microsoft.com/kb/971029

    Tip: Do NOT install IE8 via Windows Update! Download all other update/work first, then I'll give you advice on the installation of IE8 successfully.

    NB: No matter what Norton or McAfee free trial which is preinstalled on the computer when you bought will be reinstalled (but invalid) when Windows is reinstalled. You MUST uninstall the trial for free and download/run the appropriate removal tool before installing updates, Service Packs Windows or IE upgrades and before installing your new anti-virus application (which will require WinXP SP3 must be installed).

    Norton Removal Tool
         FTP://ftp.Symantec.com/public/english_us_canada/removal_tools/Norton_Removal_Tool.exe

    McAfee Consumer product removal tool
         http://download.McAfee.com/Products/Licensed/cust_support_patches/MCPR.exe

    See also:

    Risks & benefits of P2P file sharing
    http://www.Microsoft.com/protect/data/downloadfileshare/filesharing.aspx
    http://blogs.technet.com/MMPC/archive/2008/10/06/the-cost-of-free-software.aspx

    Measures to help prevent spyware
    http://www.Microsoft.com/security/spyware/prevent.aspx

    Measures to help prevent computer worms
    http://www.Microsoft.com/security/worms/prevent.aspx

    Avoid fake security software!
    http://www.Microsoft.com/security/antivirus/rogue.aspx

    If these procedures look too complex - and there is no shame in admitting this isn't your cup of tea - take the machine to a local, good reputation and stand-alone computer (that is, not BigBoxStoreUSA or Geek Squad) repair facility.

    ~ Robear Dyer (PA Bear) ~ MS MVP (that is to say, mail, security, Windows & Update Services) since 2002 ~ WARNING: MS MVPs represent or work for Microsoft

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