I'm experiencing a frustrating issue with Windows 11 on multiple machines where users intermittently receive incorrect username/password messages. Despite correctly entering their credentials, a reboot often resolves the problem temporarily. We've found that even unplugging the network cable can help. This affects users trying to log into the domain but local admin accounts work without issue. It started around October, and although we've checked standard troubleshooting areas like time settings and the health of Active Directory, the problem persists. Upgrading to a 2025 Domain Controller caused some issues, but we've rolled it back. Some users are affected regularly while others rarely encounter this problem, and the computers show no sign of failed login attempts beyond those caused by incorrect passwords. Can anyone help identify what might be going on?
5 Answers
Could this be a hardware issue? We had trouble with a batch of Dell machines that didn't work well with their docks, but they were fine with HP. Have you tried disabling cached domain accounts or checking for driver updates?
Are you using a hybrid environment? We faced a similar problem where the domain's password policy conflicted with Office 365's complexity requirements. Once we aligned both policies, the login issues cleared up.
We're having the same situation with a mix of 2016 and 2025 Domain Controllers. The 2025 server isn't handling domain duties properly, so it could be affecting login attempts. I've also noticed lately that the computer password changed recently.
Have you done any troubleshooting regarding the 2025 DC upgrade? It's worth checking if there are any replication issues since rolling back can sometimes cause conflicts. Also, verify that all domain controllers are functioning correctly and not outdated.
I recommend running the Test-ComputerSecureChannel command. It might repair any domain connection issues, but I've noticed it doesn't usually lead to intermittent problems like you're describing.
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