Challenge
When adding a Service Provider on the tenant's Veeam Backup & Replication, either of the following errors occurs:
Certificate validation failed. Unable to connect to the service provider.
Certificate validation failed. Authentication failed because the remote party has closed the transport stream.
Solution
Veeam Support engineers are only able to assist with the isolation of certificate problems. Veeam Support is unable to assist in generating, altering, importing, exporting, or installing SSL certificates.
Please refer to your SSL certificate provider for more information on certificate processes.
More Information
For more information on Certificate Signing Request (CSR), please read: Veeam Blog: Generate and install SSL Certificates on Microsoft Windows
For more information about Veeam Cloud Connect component communication and the ports used, please refer to the Veeam Cloud Connect User Guide.
