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BugZero found this defect 2061 days ago.
An attempt to start or create a Cloud Connect replication job fails with the error message: ”The following hosts are incompatible with the target host”.
The following scenarios are known to cause the issue: Tenant’s Veeam installation had been updated to the latest version (9.5 Update 4) before the SP's installation. SP's Cloud Connect server was unavailable during the upgrade.
On the Tenant's side, navigate to Backup Infrastructure -> Service Providers, open SP's properties and click through the settings finishing the wizard.