KNOWN ISSUES WITH WINDOWS 11 VERSION 25H2

Admin Duy Ha 35 Reputation points
2025-12-02T08:45:23.22+00:00

Dear Teams !

I am currently facing an issue. I have a Windows 11 24H2 PC that is not joined to the domain and is being used as a file-sharing server. All domain-joined computers can normally access the shared folders on this machine. However, after updating one of the domain-joined PCs to Windows 11 25H2, it can no longer connect to the shared folders and shows an error indicating that the login credentials are incorrect.

User's image

Thanks Teams

Duy

Windows for home | Windows 11 | Files, folders, and storage
0 comments
Answer accepted by question author
Francisco Montilla 30,705 Reputation points Independent Advisor
2025-12-02T09:31:33.55+00:00

Hi Duy,

What you are seeing is almost always the client sending domain credentials to a workgroup server, which that server cannot validate. On the Windows 11 25H2 PC, authenticate explicitly with the server's local account.

When the Windows Security prompt appears, select More choices, then Use a different account. In User name, type 192.168.1.10\localuser replacing localuser with the local account that exists on the Windows 11 24H2 file server. Enter that account's password, optionally check Remember my credentials, then select OK.

If the prompt keeps pre filling LSPACK\user or the sign‑in still fails, open Start and type Credential Manager, open Windows Credentials, remove any saved entry for 192.168.1.10 or the server name, then retry with 192.168.1.10\localuser and its password.

This forces NTLM to evaluate against the server's local SAM instead of the domain and typically resolves the exact error in your screenshot. Please try this and tell me the result. If it does not work, I will walk you through the next step.

Was this answer helpful?

0 comments

1 additional answer

Sort by: Most helpful
Most helpful Newest Oldest
  1. Admin Duy Ha 35 Reputation points
    2025-12-03T03:16:59.4266667+00:00

    1/ i create folder test01 sharing on window 11 24h2 not join domain and user localUser's image

    User's image

    and i share it,

    2/ i map net window 10 join domain -> ok

    User's image

    User's image

    But test on window 11 25h2 join domain alert Error

    User's image

    User's image

    and test window 11 24h2 join domain is It ok

    User's image

    Dear Francisco Montilla,

    From my tests, it seems Windows 11 version 25H2 is blocking something, as authentication fails even when the local account and password are correct. Downgrading a 25H2 machine to 24H2 allows it to connect. Could you please check if 25H2 has a bug or if a security setting needs adjustment?

    Thanks in advance!

    Was this answer helpful?

    2 people found this answer helpful.
    0 comments

Your answer

Answers can be marked as 'Accepted' by the question author and 'Recommended' by moderators, which helps users know the answer solved the author's problem.