Forum Discussion
Domain users not able to logon with their password event though it has not been changed....
Hi, we have this weird problem where some of the users suddenly can't login to their computer with the password they have used for almost 20 years (yes sorry, bad practise). When the user reports...
Did this issue just occur in the last few days? What are your AD domain controllers (Server 2019, 2022, 2025)? If you applied the latest 2026-04 security patch, it changed the default Kerberos authentication encryption from RC4 to DES. This caused an issue for me as I have an original AD that started in 2000 and has been consistently upgraded. The solution for those users that are locked out: enable AES-128 and AES-256 encryption on the user accounts. Make sure that you do this for all current and future user objects.