can't use non "administrator" account for connecting to Hyper-V host

A user with administrator access should work.
This server has UAC enabled? If so, disabled to have a try.

Disabled UAC on the Hyper-V host, rebooted the host, but still can only connect Veeam to the Hyper-V host with the hostname\administrators account.

Chris 

Is the non-administrator account you are trying to use part of the Local Administrators group?  Ensure that is the case.

@cdmoore1972 - did you try the process I shared?

coolsport00 wrote:

Hi @cdmoore1972 -

This is a known issue & is not Veeam-related, but a Microsoft security measure.

The error you’re receiving doesn’t occur with Domain accounts. It occurs only with local accounts; even with local admin accounts. The problem occurs due to remote UAC restrictions. To mitigate the issue, do the following:

 

After you perform the above, go back to your Veeam server and test your credentials again, using the local account format: hostname\username. It should then be successful.

Let me know.

We have a winner. 

Thanks a bunch. 

Glad to hear it resolved the issue 😊

Sadly I was hoping this would fix my issue, but I found in regedit that the entry was already set to 1.

Are there any next steps?

andysl wrote:

Sadly I was hoping this would fix my issue, but I found in regedit that the entry was already set to 1.

 

Are there any next steps?

 

 

 

The account you are using is it local admin on the Hyper-v server?  You may need a support case for this one.

The only “main” fixes we’ve come across here in the Community are:

1. Is the account in the local Admins group?
2. Is UAC disabled?
3. Is registry configured?
4. Are you using hostname\username (for non-domain joined Hosts)
5. Is firewall disabled, and/or rules set?
6. Do you have A/V exclusions in place?
7. Is your Host fully updated?
8. Have you rebooted your Host? (yes, this actually was a resolution some time ago for a user)

If you’ve done all those things and are still having issues, then as Chris suggested, a case with Veeam Support is needed.

Best.

coolsport00 wrote:

Hi @cdmoore1972 -

This is a known issue & is not Veeam-related, but a Microsoft security measure.

The error you’re receiving doesn’t occur with Domain accounts. It occurs only with local accounts; even with local admin accounts. The problem occurs due to remote UAC restrictions. To mitigate the issue, do the following:

 

After you perform the above, go back to your Veeam server and test your credentials again, using the local account format: hostname\username. It should then be successful.

Let me know.

this works for me, even without reboot server!

but additionally u need to open those ports on host:

445, 135, 6160, 6162, 6163, 2500-3300, 49152-65535

Veeam 12.1.2.172

Windows Server 2022 V21h2 (OS Build 20348.2655)

thanks amigo

@christian_elias - no problem...glad what I shared helped you out. 

Great to hear the suggestion worked to address your issue. 👍