Hello Alex,
We have different credentials for different purposes, let's see:
- VMware - Connection Settings > These are the credentials that you need in order for us to monitor your VMware Environment, it can be domain-based, or vsphere SSO the usual vsphere.local, depending on your configuration.
- VMware - Guest OS Credentials > These are the credentials that we will try to use to monitor, and alert, Guest OS Services/Processes. These are not required, or needed at all, just in case you want to monitor a bit more than VMware, and even let Veeam monitor your GuestOS Services/Processes, then you need it.
- Data Protection View Credentials > These are the credentials that we use to connect to VBR and to the Proxies to get CPU/RAM/Disk, etc. using WMI.
Bottom line:
If you like to monitor your GuestOS (as said, not required really if you are not gonna use it), either Linux or Windows, with different credentials than your ESXi, you can do that today:
The new credentials manager in v12, will let you choose in bulk credentials for all your Guest OS, like here, which I think is great:
Or choose credentials granularly for your proxies as well, if not the same as the VBR, like here:
If any problem is happening today like those errors, it could be WMI, and Roman's link could help. Otherwise, I would recommend creating a ticket so we can investigate a bit more what could be wrong.
Hope this information could help you, and perhaps v12 with the dropdown credentials could make this task easier.