Microsoft confirms Home windows 11 login points. Here is what’s inflicting it

Since August twenty ninth, many customers have reported numerous login issues on Home windows 11 and Home windows Server 2025, and that features each Home windows 11 24H2 and the newer Home windows 11 25H2.

In accordance with Microsoft’s help web page on the problem, the problem is attributable to new safety protections which can be sadly inflicting Kerberos (the authentication protocol in Home windows) and New Expertise LAN Supervisor (NTLM) to fail for customers with duplicate Safety IDs (SIDs).

The difficulty can begin occurring on related techniques after putting in both replace KB5064081 (launched on August twenty ninth) or KB5065426 (launched on September ninth). Signs embody repeatedly being prompted for credentials, entry requests fail even with legitimate credentials, shared community folders being inaccessible by way of IP tackle or hostname, failure to determine distant desktop connections, and errors in Occasion Viewer.

To completely resolve this challenge, affected units with duplicate SIDs must be rebuilt so that every SID is exclusive. Detailed info on how to do that is out there on this Microsoft information web page.