Windows 2012 R2 is unable to connect to HP StoreOnce CIFS shares

I ran into this issue the other day with a new HPE StoreOnce deployment. When attempting to connect to a CIFS share on a StoreOnce appliance (it does matter if it is physical appliance or VSA) from a Windows 2012 R2 server, the following error is received “The account is not authorized to log in from this station”.

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To fix this, navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\LanmanWorkstation\Parameters and set RequireSecuritySignature = 0  and then reboot Windows.  When Windows comes back up, you should now be able to browse the CIFS share on the StoreOnce appliance.

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One thought on “Windows 2012 R2 is unable to connect to HP StoreOnce CIFS shares

  1. Karl Kovacs (@karlkovacs) March 26, 2016 / 4:29 pm

    Bookmarking this post to my quick tips. Trying to remember where to navigate to is difficult to remember.
    Excellent resource site Dean!

    Like

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