ReadyNAS DUO guest shares work with Win10 with CIFS 1.0 option, but authenticated shares don't work

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davidacampbell wrote:

 

4.  Shares that don't have Guest access don't allow the authenticated user to access the share with username and password.  The error reported by Windows is "Access is Denied"

 

6.  Accessing the same share using an alternative non-windows SMB client software works fine and authenticates to the share with the same username and password, as below, which proves that there's nothing wrong with the SMB protocol or authentication configuration on the device.

 

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I'm not sure what it proves actually. What is this "alternative non-windows SMB client"???

This access works for me with legacy NAS.  What you should do next is

• review the user account you've created on the NAS.  It can't match the name of the PC or the name of a share on the NAS.  If the username matches the PC username, then you should also match the PC password.
• Open the windows credential manager, and explicitly add the username/password for the NAS.  Do this for both the IP address and the hostname
• You might need to reboot the PC after you update the credential manager.

You might also want to test SMB access with net use.  For example, run CMD and type

net use * /delete

net use t: \\nas-ip-address\sharename /user:username userpassword

using real values instead of the italics.  Be careful on the typing - particularly spaces and the slash directions.

The first command terminates open network sessions.  If it prompts let it proceed.  The second attempts to mount the share as drive letter t.  If you see any errors, let us know the details.

A variant on the second command is 

net use t: \\nas-ip-address\C /user:admin nas-admin-password

That will mount the full data volume.  This only works with the admin credentials, and it won't work if the NAS password is still set to netgear1.

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davidacampbell wrote:

I request that Netgear release a new firmware for the device that makes it compatible with Windows 10 as a client for authenticated shares.

 

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Well, of course you can always ask.  But they stopped shipping your NAS in 2011, and announced that they would stop updating its firmware after September 2016.  Despite that they did fix the WannaCry related vulnerabilities in May 2017.  However, now I think they're done - I'd be very surprised if there are any more updates.