Windows 10: SMB Session Authentication Failure

Discus and support SMB Session Authentication Failure in Windows 10 Software and Apps to solve the problem; While connecting from linux server to windows jump server with correct credentials we are facing the below issue. TCP connection is being reset from... Discussion in 'Windows 10 Software and Apps' started by Balasubramanian Sheshadri, Jun 22, 2025 at 5:52 AM.

  1. SMB Session Authentication Failure


    While connecting from linux server to windows jump server with correct credentials we are facing the below issue. TCP connection is being reset from the windows jump server and we are not sure what is the cause of the issueSMB Session Authentication FailureClient Name: \\x.x.x.xClient Address: x.x.x.x:57092User Name: Session ID: 0x2F80000000011Status: The request is not supported. 0xC00000BBSPN: session setup failed before the SPN could be queriedSPN Validati

    :)
     
    Balasubramanian Sheshadri, Jun 22, 2025 at 5:52 AM
    #1

  2. SMB Session Setup AndX Response Invalid FID

    I have an issue where a Windows 2016 server is returning the DOS error Invalid FID (error number 6) in response to an SMB Session Setup AndX Request. I see in Wireshark that the request packet is valid, with the correct domain, account, and other information.
    Even if the password were bad, the server would return an authentication failure (error 5) rather than an invalid FID error.

    The CIFS specification doesn't have an Invalid FID error in the error code table in section 2.2.4.53.2, so I don't know how to interpret this error.

    Has anyone else encountered this situation? What does an Invalid FID mean in the context of a Session Setup AndX Response?
     
    Steve Talmage, Jun 22, 2025 at 5:55 AM
    #2
  3. ncazer Win User
    Safety of Login credentials for SMB...

    Ok so similar but slightly different question:

    Background:

    • Storage hosted by my Linksys WR32X Router (see screenshot) with authentication credentials
    • SMB v1, v2, and v3 are all enabled on my Win10 PC via the "Enable Features" window (and I've restarted my PC)
    • My Windows 10 account uses my MS Live email address as a username and I have 2-step authentication set up as well

    A Timeline:

    • The NAS successfully shows up and is accessible from the Network page in Win Explorer
    • I've successfully mapped the storage to a Network Drive in Windows using the authentication credentials I set in my router's settings page (again see screenshot)
    • When I try to access the SMB share via a separate device on my network (my FireTV device running Kodi 17--which supports up to SMB v3), I get caught in an endless loop of it asking for a username and password.
      • I've tried using the credentials I set in my router settings, which worked when I mapped the share to a network drive in windows, and it didn't work in Kodi
      • I've tried un-mapping and re-mapping the share to a network drive using my windows 10 account username and password instead of the credentials set in my router settings, which did not work for either mapping the drive in windows or for accessing it in Kodi
      • I also tried generating an app-specific password via my Microsoft account settings in case the 2-step authentication set on my account was causing the issue (much like you have to do to add your account to Outlook Desktop App when 2-step is set up)

    I just want to access my SMB share from my FireTV device (or any network device for that matter) without having to create a new local user. I saw some responses saying that I need to set up a new local account and use it's credentials to map the drive and
    then it should work, but is this REALLY necessary? It seems like a redundant workaround...

    So, what if I don't want to create a new local user? I like having jut one account on my Win10 PC and that uses my
    MS email address as the Win10 Account username.

    Any suggestions? What am I missing here? Thanks in advance MS community!


    SMB Session Authentication Failure 9aaede1e-cf27-4d47-a560-8636238a3d1a?upload=true.png
     
  4. Bree Win User

    SMB Session Authentication Failure

    Which SMB is on my Network

    To do that in an admin Powershell session use Get-SmbConnection

    Or you can use powershell Get-SmbConnection in a Command Prompt (Admin). Here is a mixed network, my BT router is on SMB 1.5, a W7 machine is using 2.1, while the W10 machines are all 3.1.1. NB: you have to be connected to a machine for it to appear in the list. A File Explorer window looking at the list of shares on a network PC is sufficient, so open File Explorer at Network then open each PC you see there in a new window.


    SMB Session Authentication Failure 237275d1560617208t-smb-my-network-smb-connections.png
     
Thema:

SMB Session Authentication Failure

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