I have been adding new Hyper-V hosts into Veeam recently, where the hosts for some reason have been left on a WORKGROUP. This reuqires us to use a local administrator account, and quite often throws an error saying it "Failed to create persistent connection to ADMIN$".
This is luckily a very easy fix and can be sorted out within a couple of minutes by adding a registry DWOROD.
Navigate to the following:
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
Create a DWORD value called LocalAccountTokenFilterPolicy and assign it a value of 1.
Once you've done this, you can add the Hyper-V host to Veeam and it will work perfectly!
