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Question

I encountered 'network path not found or invalid credentials supplied' using Veeam 11.0.1.1261

I
Userlevel 2

I encountered the above error when using a new Windows server. I'm certain that communication between servers is normal, and the ports are open. I've successfully added several servers of the same type without any error. And I've tried the following:

  1. Disabling the firewall and antivirus software.
  2. Adding a new account with administrator privileges.
  3. Using the IP address instead of the DNS name.
  4. Checking the registry or services to ensure they don't affect the relevant services. However, this issue still persists.

My server is not within a domain, and this server is not a virtual machine

20 comments

I
Userlevel 2

I am unable to retrieve the logs for adding it, as I'm being prompted that the host cannot be found.

coolsport00
Userlevel 7
Badge +17

Have you added this physical server to the hosts file on your Veeam server? 

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
Chris.Childerhose
Userlevel 7
Badge +20

Have you added this physical server to the hosts file on your Veeam server? 

This is a good suggestion for your next test considering what you have done already.

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
I
Userlevel 2

Have you added this physical server to the hosts file on your Veeam server? 

Are you referring to this file C:\Windows\System32\drivers\etc\hosts
Yes,i have added

Chris.Childerhose
Userlevel 7
Badge +20

Have you added this physical server to the hosts file on your Veeam server? 

Are you referring to this file C:\Windows\System32\drivers\etc\hosts
Yes,i have added

Ok. The credentials you are using are they in the format of - hostname\username?  You can also use - localhost\username too but try the first one.  Considering the error was credentials.

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
I
Userlevel 2

Have you added this physical server to the hosts file on your Veeam server? 

Are you referring to this file C:\Windows\System32\drivers\etc\hosts
Yes,i have added

Ok. The credentials you are using are they in the format of - hostname\username?  You can also use - localhost\username too but try the first one.  Considering the error was credentials.

Thank you for you help.
No, because my server is not in a domain, I'm not using localhost\username. And I have several other servers with the same username and password, and they all work fine using the same credentials. Also, I have an SMB backup on this server that is accessible using this credentials, so I don't think this issue has anything to do with credentials.

Finally, I tried using localhost\username as you said, but it still prompted an error in the title.

Chris.Childerhose
Userlevel 7
Badge +20

Have you added this physical server to the hosts file on your Veeam server? 

Are you referring to this file C:\Windows\System32\drivers\etc\hosts
Yes,i have added

Ok. The credentials you are using are they in the format of - hostname\username?  You can also use - localhost\username too but try the first one.  Considering the error was credentials.

Thank you for you help.
No, because my server is not in a domain, I'm not using localhost\username. And I have several other servers with the same username and password, and they all work fine using the same credentials. Also, I have an SMB backup on this server that is accessible using this credentials, so I don't think this issue has anything to do with credentials.

Finally, I tried using localhost\username as you said, but it still prompted an error in the title.

Using the credentials I suggested has nothing to do with a domain as it is local machine credentials. I would try computername\username and see 

Otherwise check the logs here or open a case.  Logs - C:\ProgramData\Veeam\Backup

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
I
Userlevel 2

Have you added this physical server to the hosts file on your Veeam server? 

Are you referring to this file C:\Windows\System32\drivers\etc\hosts
Yes,i have added

Ok. The credentials you are using are they in the format of - hostname\username?  You can also use - localhost\username too but try the first one.  Considering the error was credentials.

Thank you for you help.
No, because my server is not in a domain, I'm not using localhost\username. And I have several other servers with the same username and password, and they all work fine using the same credentials. Also, I have an SMB backup on this server that is accessible using this credentials, so I don't think this issue has anything to do with credentials.

Finally, I tried using localhost\username as you said, but it still prompted an error in the title.

Using the credentials I suggested has nothing to do with a domain as it is local machine credentials. I would try computername\username and see 

Otherwise check the logs here or open a case.  Logs - C:\ProgramData\Veeam\Backup

I don't understand what you mean
I tried using localhost\username and still got an error
Which file in this folder do I need to use

Chris.Childerhose
Userlevel 7
Badge +20

Not localhost - use the actual computer name so if your server name is Server01 the you enter - server01\username

The file in that folder will be the name of the job but it sounds like a support case is you best bet here.

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
I
Userlevel 2

Not localhost - use the actual computer name so if your server name is Server01 the you enter - server01\username

The file in that folder will be the name of the job but it sounds like a support case is you best bet here.

I mistakenly chose this as the best answer
I understand what you mean
I made sure I used the server name and not the domain name

I
Userlevel 2

Not localhost - use the actual computer name so if your server name is Server01 the you enter - server01\username

The file in that folder will be the name of the job but it sounds like a support case is you best bet here.

I will try to initiate case support, thanks for your answer

MatzeB
Userlevel 5
Badge +3

Hmm when you try to add an windows server as infrastructure server to veeam that is not part of the domain and you don’t connect using HOSTNAME/ADMINISTRATOR, and i mean the user with the SID -500 then you have to set this RegKey on Destination Machine.

LocalAccountTokenFilterPolicy set to 1

HKEY\_LOCAL\_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

 

Im not sure if this is your issue because you have a different error message. But you can double check.

 

Matze

Matthias Beller - VMCA2022/2020 | VMCE2023/2021/2020 | Veeam Vanguard
dloseke
Userlevel 7
Badge +6

Not localhost - use the actual computer name so if your server name is Server01 the you enter - server01\username

The file in that folder will be the name of the job but it sounds like a support case is you best bet here.

I mistakenly chose this as the best answer
I understand what you mean
I made sure I used the server name and not the domain name

@Madi.Cristil @safiya can one of you reset the Best answer on this please?  We’ll get it sorted out once the issue is resolved.

Derek M. Loseke, Senior Systems Engineer | Veeam Legend 2022-2023 | VMSP/VMTSP | VCP6-DCV | VSP/VTSP | CCNA | https://technotesanddadjokes.com | @dloseke
I
Userlevel 2

Hmm when you try to add an windows server as infrastructure server to veeam that is not part of the domain and you don’t connect using HOSTNAME/ADMINISTRATOR, and i mean the user with the SID -500 then you have to set this RegKey on Destination Machine.

LocalAccountTokenFilterPolicy set to 1

HKEY\_LOCAL\_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

 

Im not sure if this is your issue because you have a different error message. But you can double check.

 

Matze

I saw this solution in other answers, but there is no such key value in the registry of my other successfully backed up windows servers.

Chris.Childerhose
Userlevel 7
Badge +20

Hmm when you try to add an windows server as infrastructure server to veeam that is not part of the domain and you don’t connect using HOSTNAME/ADMINISTRATOR, and i mean the user with the SID -500 then you have to set this RegKey on Destination Machine.

LocalAccountTokenFilterPolicy set to 1

HKEY\_LOCAL\_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

 

Im not sure if this is your issue because you have a different error message. But you can double check.

 

Matze

I saw this solution in other answers, but there is no such key value in the registry of my other successfully backed up windows servers.

It is not always there by default and you can create it.

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
I
Userlevel 2

Hmm when you try to add an windows server as infrastructure server to veeam that is not part of the domain and you don’t connect using HOSTNAME/ADMINISTRATOR, and i mean the user with the SID -500 then you have to set this RegKey on Destination Machine.

LocalAccountTokenFilterPolicy set to 1

HKEY\_LOCAL\_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System

 

Im not sure if this is your issue because you have a different error message. But you can double check.

 

Matze

I saw this solution in other answers, but there is no such key value in the registry of my other successfully backed up windows servers.

It is not always there by default and you can create it.

OK, I tried adding the registry key, but still got the same error.

Chris.Childerhose
Userlevel 7
Badge +20

Time to continue with support at this point.

Chris Childerhose - VMCA2022 | VMCE2023 | Veeam Vanguard 7* | Veeam Legend 3* | vExpert 5* | VCAP-DCV/VCP-DCV | Object First Ace | Cisco Champion | Twitter: @cchilderhose | Blog Site – https://just-virtualization.tech
CarySun
Userlevel 7
Badge +7

@idontknowusewhatusername In the Network and Sharing Center, verify that it is not set for the public (or ensure it’s the same as the Veeam server).

Also, try to enable File and Printer Sharing.

Veeam Vanguard | Veeam Legend | VMCE 2024 | Microsoft MVP | Cisco Insider Champion | CISCO CCIE #4531 | Web Site - carysun.com | Blog Site - gooddealmart.com | Blog Site - checkyourlogs.net | X: @SifuSun | LinkedIn: https://www.linkedin.com/in/sifusun/ | Amazon Author: https://Amazon.com/author/carysun
coolsport00
Userlevel 7
Badge +17

Hi @idontknowusewhatusername -

I’m just following up on your post here. Did any of the provided comments help you be able to connect to your physical server? If so, can you mark which comment best helped you as ‘Best Answer’ so others who experience a similar issue as yours may benefit?

If not, did you reach out to Veeam Support? If they were able to help, can you share what they did to get your issue resolved?

Thank you.

Shane Williford - Veeam VMCA/VMCE | Veeam Legend | VUG Leader | VCP-DCV | Twitter: @coolsport00
S

The remote Hyper-V host is in a workgroup you need to use this Powershell command at the remote host.

 

Set-NetFirewallRule -DisplayGroup "File And Printer Sharing" -Enabled True -Profile Any

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