Forum Discussion

Aspirant

Jul 02, 2017

Solved

ReadyNAS 204 - Access Denied after Windows 10 update

I have been using a ReadyNAS 204 for a few months with no problems. My system has two Windows 10 (64bit) computers connected to the ReadyNAS. A few days ago, one of the computers received a Windows ...

Desktop client

Big_B
Jul 03, 2017
Thank you StephenB for your comment about checking access. I started doing as you suggested, and somewhere along the line noticed a comment about "Password Protected Sharing" being on, and how if I wanted to change that I had to use the "Network and Sharing Center." So I went there (to the "Network and Sharing Center") and started looking around. I eventually got to the "All Networks" area and found the "Password Protected Sharing" area where, lo and behold, "Password Protected Sharing" was turned on. So I turned off "Password Protected Sharing" and guess what?--my backups now work!!

So in a nutshell, the Windows 10 update apparently turned on "Password Protected Sharing" and the only thing necessary to fix the issue is to turn it off.

Thanks to all.

StephenB

Guru - Experienced User

Jul 02, 2017

I'm not 100% sure, but you might need to enable the SMB1 server functionality on the updated system.

Perhaps check the windows features for the old and new win10 systems, and see if that's the issue.

Big_B

Aspirant

Jul 02, 2017

Thanks for the suggestion. The SMB 1.0/CIFS File Sharing Support was enabled, so I turned it off (just to try something). It made no change, so I turned it back on. I did forget to note that I created a Windows Credential for the NAS204, and that made no difference either.

Big_B
Aspirant
Jul 02, 2017
Some further information: From both of the Windows 10 computers, I can access all of the files on the NAS with no problems, It's only when I try to do do backups (or use "Test Connection") that I encounter the "Access Denied" problem.
StephenB
Guru - Experienced User
Jul 03, 2017
Big_B wrote:

Thanks for the suggestion. The SMB 1.0/CIFS File Sharing Support was enabled, so I turned it off (just to try something).

There are two facilities - the SMB1 client and the SMB1 server. The backup job might require the SMB1 server to be installed. If I have a chance I'll try this with one of my own win10 systems.
- dmacleo
  Guide
  Jul 03, 2017
  iirc 15063.447 disables smb1 on win10 machine itself due to wannacry, I know there were updates in wsus specifically to disable smb1.
  smb 2 or 3 on nas (matching what client uses, check version through powershell) may work though, unable to test that here
  need to use powershell though on client to set version
  http://www.thewindowsclub.com/disable-smb1-windows
  also to check stuff more info
  https://support.microsoft.com/en-us/help/2696547/how-to-enable-and-disable-smbv1-smbv2-and-smbv3-in-windows-and-windows
- StephenB
  Guru - Experienced User
  Jul 03, 2017
  StephenB wrote:
  If I have a chance I'll try this with one of my own win10 systems.
  
  It's not about SMB1 - I just tested this on my RN526x to a win10 system running 1703 (build 15063) and test backup job completed normally.
  - Big_B
    Aspirant
    Jul 03, 2017
    Ok, so if I understand correctly, SMB1 settings are not the issue. I'm considering trying a rollback of Windows 10, but I'm not sure that I'd get any useful information. If the rollback changed things so that backups now work, I wouldn't have any idea what had changed. Conversely, if the rollback didn't work, all that I could reasonably conclude was that the rollback wasn't 100% effective.
    
    I do have a question though. When I employ the "Test Connection" button in the NAS control panel and get the "Access Denied" message, is this Windows 10 saying that access to the computer is denied or is it the NAS saying that the Windows 10 computer is denied access to the NAS?