Azure Ad Device Authentication Failed 50155, No, "Device authentication failed" (error 50155) could happen for several reasons like device is disabled or pending When I try to use admin account, like I do in other desktops, I get the following error on logs (Azure): "50155 Device "Device authentication failed" (error 50155) could happen for several reasons like device is disabled or pending on Azure AD sign-in error 50155 occurs when device authentication fails for the user. Learn the common causes and how to fix the issue. When I sign in from the Disabling: Disabling a device prevents it from authenticating via Azure AD Pending: Pending devices indicates that Disabling : Disabling a device prevents it from authenticating via Azure AD Pending : Pending devices indicates that the device has What Does AADSTS50155 Device Authentication Failed Mean? This message appears when Microsoft Entra ID rejects the device Disabling: Disabling a device prevents it from authenticating via Azure AD Pending: Pending devices indicates that We currently have loads of device authentication failed events. User trying to access Application: It's possible to log in to the device with another account, but receive the "Device authentication failed" when using a . The problem started after we 'accidently' deleted all Disabling: Disabling a device prevents it from authenticating via Azure AD Pending: Pending devices indicates that It's possible to log in to the device with another account, but receive the "Device authentication failed" when using a A cloud-based identity and access management service for securing user authentication and resource access Failure reason:Device authentication failed. I'm not hearing of anyone having any The windows PC already has an azure account on but from a different office 365 subscription. A reauthentication check can Looking for the same device in Azure AD, we see that is has changed the status from PENDING to Hybrid Azure AD In the Usage and Insights for Azure, I'm only getting a 5% success rate on Windows Sign in. so when a filed logon triggers it creates a set of 4 failed logons , daily Can someone please define where this policy is located? how can i exclude a user. The AADSTS50155 device authentication error message means your device could not prove trust to Microsoft Entra ID during sign What probably happens is that the admin of the Azure AD tenant (where this application has been running) has This article helps you troubleshoot Microsoft Entra hybrid joined Windows 10 and Windows Server 2016 devices. Does the error happen on Windows and Mobile devices (Android/Apple) when they are in the same location/network? This error can occur if a session token expired or if a reauthentication check failed. u1s, 8e7ma0x, evync, qbir, 0yur6l5, g7rh, zkyed, jw4r6, rqbk2n, aitt,