Forum Discussion
Configure Hybrid Modern Authentication in Exchange on-premises
I have error with Hybrid Modern Authentication for OWA and ECP. After I log in to owa/ecp from https://login.microsoftonline.com/ when I access ecp/owa, it's show error:
Hope to receive reply soon. Thanks a lot
- All servers must have at least the Exchange Server 2019 CU14 update installed.
They must also run the Exchange Server 2019 CU14 April 2024 HU or a later update.
https://learn.microsoft.com/en-us/microsoft-365/enterprise/configure-exchange-server-for-hybrid-modern-authentication?view=o365-worldwide#enable-hybrid-modern-authentication-for-owa-and-ecp/?WT.mc_id=M365-MVP-5002523- Examine the Event Viewer logs on the Exchange server for any errors related to authentication or connectivity. The logs can provide specific error messages that can help in identifying the issue.
