Archive On-prem not available in Hybrid environment

[AtanasM]

Archive was enabled for on-prem mailbox from the local Exchange server in Exchange hybrid deployment. Exchange Online plan 2 license is assigned to the users. The archive folder is visible in OWA (on-prem), but there is no access. Error message: "The archive does not seem to be available. Please try again later".

The status of the archive is "Active" in Exchange Online.

I ran the following command in PowerShell:

Test-ArchiveConnectivity -UserSMTP

result:

Sign in to mailbox not possible.

Error: An Autodiscover request could not be created for an incorrectly configured Office 365 mailbox.

[#2]

it appears that there may be an issue with the Autodiscover service not being configured correctly for your Office 365 mailbox.

To troubleshoot this issue, you can try the following steps:

Check the Autodiscover configuration settings: Verify that the Autodiscover service is configured correctly for your mailbox. You can use the Test-OutlookWebServices cmdlet in PowerShell to check if Autodiscover is functioning correctly.

Verify the credentials: Ensure that you have the correct credentials and permissions to access the archive folder. Make sure that your account has the Exchange Online Plan 2 license assigned.

Check the connectivity: Ensure that you have a stable and reliable internet connection to access the archive folder. If you are using a VPN, try disconnecting from it and see if that resolves the issue.

Contact Microsoft Support: If you have tried the above steps and still can't access the archive folder, you can reach out to Microsoft Support for further assistance.

I hope this helps you resolve the issue! If you have any other questions or concerns, please let me know.