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 Thank to: https://bonguides.com/ Invalid Credentials Error Adding a Hyper-V Host When attempting to add a Hyper-V host to  Veeam Backup & Replication  using a local (non-domain) user account, the following error occurs: Failed to connect to host Access denied or timeout expired . Check if you have local administrator privileges on computer Possible reasons: 1 . Invalid credentials . 2 . Specified host is not a Hyper - V server . Solutions 1. Login into the Hyper-V host then open  Registry Editor . 2. Navigate to the following location then create a new  DWORD  value. Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System 3. Enter the name  LocalAccountTokenFilterPolicy  then double click on it and set the value data is  1. Or you can create a DWORD value using PowerShell, let run below command in PowerShell Admin. reg add HKLM\Software\Microsoft\Windows\CurrentVersion\policies\system / v LocalAccountTokenFilterPolicy / t Reg_DWORD / d 1 Fin

 Thank to: https://www.itprotoday.com/ Use PowerShell to find your Hyper-V host host name from inside a VM. Q: I remotely manage a number of different VMs that are running on multiple Hyper-V hosts and I don’t always know the Hyper-V host name of the VM that I’m using. Is there a way I can find the Hyper-V host name from inside the VM? A: You can find the Hyper-V host name in the guest VM’s registry at the following key: HKLM\SOFTWARE\Microsoft\Virtual Machine\Guest\Parameters However, repeatedly looking into the registry with regedit can be time consuming and tedious. The following PowerShell command retrieves the VM’s host name and it works on Windows Server 2008 and higher. PS C:\temp> (get-item "HKLM:\SOFTWARE\Microsoft\Virtual Machine\Guest\Parameters").GetValue("HostName")