Issue
When adding a new windows VM or Hyper-V server to the managed server on Veeam Backup using a dedicated local (non-domain) backup user account there is an error that said invalid credential even though you can login using the same credential directly to the server.
This issue is happening because the user you use to connect does not have enough permissions to access DCOM, WMI, or the admin shares of the Hyper-V host and must be given permission so Veeam can communicate to the host using said services
Solution
WARNING: VM or Hyper-V Host Reboot Required. The last step of the solution below requires that the Hyper-V host be rebooted.
Add the following registry value:
- Location: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
- Type: DWORD
- Value: LocalAccountTokenFilterPolicy
- Data: 1
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