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BugZero found this defect 914 days ago.
This article documents a scenario where the Veeam ONE software was initially installed on a Windows machine that was not joined to a Domain. Then after Veeam ONE is installed, that Windows machine is joined to a Domain. When this specific scenario occurs, the Reports menu will display a message stating that:
This issue occurs because the initial self-signed certificate was generated for what the DNS name was before joining the domain and does not now match the new FQDN.
Repair Reports list in the Veeam ONE Client Launch the Veeam ONE Settings Utility Within the Veeam ONE Setting Utility, click the Veeam ONE Server tab on the left. Then, click the Web API Certificate tab along the top. On the Web API Certificate tab, click Generate and follow the steps to generate a new certificate.
If you face any difficulties related to this issue, create a Veeam Support case.