Win 10 suddenly can't connect ReadyNas DUO

Hi all,

After a few Microsoft updates to Windows 10, I am no longer able to access my ReadyNas Duo using either a UNC path or mapped drives. The device shows under "network" but cannot be accessed. Clicking the NAS icon results in a Windows Network Error (Windows cannot access \\NAS Check the spelling of the name, Otherwise there might be a problem with your network, etc).

If I use Raidar and select "Browse" it works (a Windows Explorer window is spawned and I can use it as usual). But it only works with Raidar. If I open up an Explorer windows and put in the static IP (192.168.1.9) it opens the content in my Web Browser, not an Explorer window. Furthermore, every connect attempt results in a credentials challenge.

None of this has ever happened in the past, and no changes were made to anything else except for updating the Windows OS itself. Considering this is the repository for some critical work files this has now shot up to the top of my urgent priorities list. I'm in the process of copying off the files onto a local disk, but that's just a short-term fix obviously. I need to get this remedied.

Raidar version 4.3.8

ReadyNAS firmwas 4.1.16

Windows version 10.0.19033 (build 19033)

StephenB
Dec 06, 2019
PeterD2 wrote:

Unfortunately this didn't solve the problem. Added the static IP to the hosts file as directed, verified it's there after saving, but no go. If I enter "ping nas" at the command line it resolves to 192.168.1.9 and pings out fine.

What happens when you enter \\NAS in the windows explorer line?

Maybe also open CMD and enter

net use * /delete /y

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

and tell us what happens there too?

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StephenB
Guru - Experienced User
Dec 05, 2019

PeterD2 wrote:

If I open up an Explorer windows and put in the static IP (192.168.1.9) it opens the content in my Web Browser, not an Explorer window.

You need to enter \\192.168.1.9 into the file explorer address bar. Just entering the IP address (or using the wrong slash direction) will open your browser. That's Windows behavior, not the NAS.

PeterD2 wrote:

Furthermore, every connect attempt results in a credentials challenge.

Likely you've been using guest (everyone) access with the NAS. Open the Windows Credential Manager on the PC, and select "Windows Credentials". Delete any credentials that are already stored for NAS or 192.168.1.9. Then create two new windows credential - one for the host name, and one for the IP address. If the only user account you have on the NAS is the built-in admin account, then consider adding a new user account to use for these credentials.

PeterD2 wrote:

The device shows under "network" but cannot be accessed. Clicking the NAS icon results in a Windows Network Error (Windows cannot access \\NAS Check the spelling of the name, Otherwise there might be a problem with your network, etc).

This can be the trickiest to fix. Make sure you have access by the IP address before looking at this one. Then enter \\NAS in the file explorer address bar, and see if that gives you the expected share list. If it doesn't, then the simplest work-around is to enter NAS (and it's IP address) into the Windows HOSTS file. This overides any other name lookup method, and will make sure that \\NAS is resolved to 192.168.1.9.

Basic instructions are:

Type Notepad in the Wiondows search field.

In the search results, right-click Notepad and select Run as administrator.

From Notepad, open the following file (you can copy/paste it into File > Open):

c:\Windows\System32\Drivers\etc\hosts

Add a new line that says 192.168.1.9<tab>NAS (using the real tab key as the separator)

Select File > Save to save your changes.
- PeterD2
  Aspirant
  Dec 05, 2019
  Unfortunately this didn't solve the problem. Added the static IP to the hosts file as directed, verified it's there after saving, but no go. If I enter "ping nas" at the command line it resolves to 192.168.1.9 and pings out fine.
  
  I can only enter the shares by putting in \\192.168.1.9 into an Explorer window. All my backups are failing now too. I'm not really looking for a workaround, I need to actually fix the problem. It works from my laptop that's on an earlier version of Windows, but from the second PC in the house that's also on Win10 version 19033 (Nov update), it's suffering the same fate.
  - Sandshark
    Sensei - Experienced User
    Dec 05, 2019
    If you put the NAS address into Hosts and re-booted, and the NAS name is still not resolved, then you made an error somehow. One possibility is that you followed the examples exactly. But they start with #, which comments them out. Your entries should not. Typos are, of course, another possibility.