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unable to open files on network drive RRS feed

  • Question

  • I tried this over at Microsoft Answers and they suggested trying here.

    Basically I've lost the ability to read/write to my mapped network drive locations, but only from the one system running Windows 7.  It was working normally until 2 days ago.

    The hardware is a USB drive box connected thru a NAS adapter to the network.  The drive box has no firmware to update and the NAS adapter has the current firmware.  The drive shows in Explorer, it will open, but sometimes it generates the following error:  An error occured reconnecting X: to \\network\location   MS Netowrk: The local device name is already in use.  Conection not restored.    Hit OK to get rid of the error message and the folder opens anyway.  There are no thumbnails, just generic icons.  Attempting to open a JPEG will cause Windows Photo Viewer to give an unsupported format error.  Attempting to open a avi or wmv file will cause WMP to give an unsupported format error or location unavailable error.  Attempting to open a DOC file will cause word to give an unable to open error.

    The drive is accessable and read/writable from both my server and my laptop, both running non-MS OS.

    I tried all the basic stuff: cold booting the drive and the windows box, restarting all the network hardware, turning off the firewall, deleteing and recreating the drive mapping, deleting and recreating the credentials.

    I ran the web based drive scan fro the NAS adapter from both the Windows box and my server and both came back with no drive errors.

    I tried a clean boot, as suggested over at Microsoft Answers, but the problem remained.  I was unable to actually disable the Norton security suite, so this result is questionable.

    I can pull files off the drive with the server and copy them to the Windows box, a pain but I have access to the files.  But most of my backups are broken until I regain the ability to read/write the drive.

    Any ideas?

    Thanks

     

     

    Saturday, June 11, 2011 12:24 PM

Answers

  • Hi Miya,

    The drive is mounted/mapped on the server, and I have no problems with read/write from there.

    The IP address opens the web based configuration screen.  On of the options is a drive scan, which comes back ok.

    I suspected either an authentication issue or possibly a hardware issue with the NAS adapter that was only affecting the Windows connection. 

    As I can read/write the drive from my server I pulled off the most recent full backup sets and directly attached the drive the server, eliminating the NAS adapter.  The drive is read/write accessable this way, but all the security and user accounts provided by the NAS adapter are missing.  I reformated the drive, using a more effiecent file system, getting back some of the space and deleting alot of very old backup sets.  I mounted/mapped the drive directly on the server and set it up with samba shares.  The drive maps from Windows and I modified my backup tasks for the new locations.

    I know its's not really a solution to the problem, but it eliminates the source of the issue, the NAS adapter. 

    Thanks for the response.

    snipe340

    • Marked as answer by Miya Yao Wednesday, June 15, 2011 9:00 AM
    Tuesday, June 14, 2011 11:51 PM

All replies

  • Hi snipe340,

    Thanks for the post!

    If you directly map the shared drive on your sever, does it work?

    How about access the USB drive using the IP address?

    I suspect there could be some authentication issue between the NAS and the Windows 7 clients.

    I recommend you try a to capture the network traffic to find what happended when you access the USB drive. You can download the Network Monitor from: http://www.microsoft.com/downloads/en/details.aspx?FamilyID=983b941d-06cb-4658-b7f6-3088333d062f

    Regards,

    Miya


    This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Tuesday, June 14, 2011 7:30 AM
  • Hi Miya,

    The drive is mounted/mapped on the server, and I have no problems with read/write from there.

    The IP address opens the web based configuration screen.  On of the options is a drive scan, which comes back ok.

    I suspected either an authentication issue or possibly a hardware issue with the NAS adapter that was only affecting the Windows connection. 

    As I can read/write the drive from my server I pulled off the most recent full backup sets and directly attached the drive the server, eliminating the NAS adapter.  The drive is read/write accessable this way, but all the security and user accounts provided by the NAS adapter are missing.  I reformated the drive, using a more effiecent file system, getting back some of the space and deleting alot of very old backup sets.  I mounted/mapped the drive directly on the server and set it up with samba shares.  The drive maps from Windows and I modified my backup tasks for the new locations.

    I know its's not really a solution to the problem, but it eliminates the source of the issue, the NAS adapter. 

    Thanks for the response.

    snipe340

    • Marked as answer by Miya Yao Wednesday, June 15, 2011 9:00 AM
    Tuesday, June 14, 2011 11:51 PM
  • Hi snipe340,

    Glad you got the things to work!

    Thanks for sharing your experience with us. Even you mention it's not really a solution, at least you provide with more clues. It will also help others here.

    Cheers:)

    Miya


    This posting is provided "AS IS" with no warranties, and confers no rights. | Please remember to click "Mark as Answer" on the post that helps you, and to click "Unmark as Answer" if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.
    Wednesday, June 15, 2011 9:00 AM