Specified network name is no longer available.

Glenn Maxwell 10,186 Reputation points
2023-01-20T03:23:20.7533333+00:00

Hi All

i am unable to map Azure Storage account as a mapped drive on windows 10 VM hosted in azure. i am getting the below error. Specified network name is no longer available.

i have performed the below steps but no luck. VM has the connectivity to storage account no issue with it. i am able to map it on a server in the same subnet without any issue. i suspect some policy is blocking. experts guide me

Step 1: Type windows feature in the Search box, then click Turn Windows features on or off.

Step 2: Scroll down to SMB 1.0/CIFS File Sharing Support and then check the box next to it. Click OK to save changes.

Step3: server and workstation services are up and running.

Windows 10
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Accepted answer
  1. Ramya Harinarthini_MSFT 5,306 Reputation points Microsoft Employee
    2023-01-20T06:38:04.9966667+00:00

    @Glenn Maxwell Welcome to Microsoft Q&A, thank you for posting your here!!

    In order to use an Azure file share via the public endpoint outside of the Azure region it is hosted in, such as on-premises or in a different Azure region, the OS must support SMB 3.x. Older versions of Windows that support only SMB 2.1 cannot mount Azure file shares via the public endpoint.

    User's image

    You can also use AzFileDiagnostics to ensure that the Windows client environment has correct prerequisites. AzFileDiagnostics automates detection of most of the symptoms mentioned in this article and helps set up your environment.

    Hope this helps!
    Kindly let us know if the above helps or you need further assistance on this issue.


    Please do not forget to "Accept the answer” and “up-vote” wherever the information provided helpsyou, this can be beneficial to other community members.

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  1. Limitless Technology 43,996 Reputation points
    2023-01-23T08:45:29.5466667+00:00

    Hello there,

    Ensure port 445 is open: The SMB protocol requires TCP port 445 to be open; connections will fail if port 445 is blocked. You can check if your firewall is blocking port 445 with the Test-NetConnection cmdlet.

    To learn about ways to work around a blocked 445 port, see the Cause 1: Port 445 is blocked section of our Windows troubleshooting guide. https://learn.microsoft.com/en-us/azure/storage/files/storage-troubleshoot-windows-file-connection-problems?tabs=azure-portal#cause-1-port-445-is-blocked

    Try downloading and running the AzDiagnostics.ps1 as mentioned in this post to troubleshoot this further https://learn.microsoft.com/en-us/answers/questions/945135/cannot-map-azure-file-share

    Hope this resolves your Query !!

    --If the reply is helpful, please Upvote and Accept it as an answer–

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