KB ID : 104059
Products :
Published : Jan. 3, 2019
Created : Jan. 3, 2019
Last Modified : Jan. 3, 2019

Cause 1

This alert usually throws when the credentials provided for the guest machine(s) are incorrect.

Solution

  • Check whether the credentials provided for the guest machine(s) are correct or not. You can ensure the given credentials by navigating to Edit Backup page.

Cause 2

For appaware enabled backups Vembu Backup Agent will try to push an appaware-guest-tool into the guest machine to ensure application consistency. By default, the tool will use installation location as "C:\Windows". So, If the given user account does not have enough permission to create a folder in the location “C:\Windows” in Guest Machine then the backup will fail with the given error.

Solution

  • It is necessary to give administrator account for the appaware process during backup configuration if not edit the backup job and provide the administrator account credentials.

  • Make sure the given user account is having privileges (without elevated permissions) to create a folder inside “C:\Windows” in the guest machine.

Cause 3

A) When added target host is not reachable [ UNC validation path validation [ admin$] ]

B) When there is an issue in accessing Windows Management Instrumentation [ WMI ] of your target host.

C) If guest machines windows firewall enabled, then we have to add windows firewall exception in Group policy object editor.

Solution

Please follow the steps provided below:

For Cause A: When added target host is not reachable - UNC Validation

Target host Remote share [ Admin$ ] is required for copying the VIS installer to the target machine.

You can confirm UNC validation by verifying the admin$ share access manually from your Machine where “VembuBDR” or “VembuVMBackup" had been installed.

        Open 'Run' and type the following  \\IP\admin$
        In place of IP provide the “Hostname\IP“ of the target machine 
        Example: \\192.168.100.100\admin$

Make sure the target host is reachable. If reachable and still you face the above error, then proceed with the following verification:

Case 1: Make sure your firewall does not block following remote connections, if so please add the below rule into your Inbound firewall rules in your target machine

   Step 1: Open control panel 
   Step 2: Navigate to System and security >Windows Firewall >Advanced Setting
   Step 3: In Windows firewall with advanced security, click Inbound rules .
   Step 4: Inbound rules > click new rule and proceed to opt for Predefined option
   Step 5: In predefined dropdown > select “Remote service Management “ rule and  proceed with the default option to enable it and click finish.

Case 2: Make sure Following services are running in your target machine

   Server Service 
   Windows Remote Management (WS -management)

For Cause B: When there is an issue in accessing Windows Management instrumentation [ WMI ] of your target host

Case 1: Make sure your firewall does not block any Windows Management Instrumentation function, if so please add the below rule into your Inbound firewall rules in your target machine

  Step 1: Open control panel 
  Step 2: Navigate to System and security >Windows Firewall >Advanced Setting
  Step 3: In Windows firewall with advanced security, click Inbound rules .
  Step 4: Inbound rules > click new rule and proceed to opt for Predefined option
  Step 5: In predefined dropdown > select “Windows Management instrumentation “ rule and  proceed with the default option to enable it and click finish.

Case 2: Make sure Following services are running in your target machine

    Window Management Instrumentation

For Cause C: If guest machines windows firewall enabled, then we have to add windows firewall exception in Group policy object editor

Configure Windows Firewall service to allow inbound remote administration connections:

  • Launch the Group Policy Object Editor snap-in (gpedit.msc) to edit the Group Policy object (GPO) that is used to manage the Windows Firewall settings in your organization.
  • Navigate to Computer Configuration -> Administrative Templates -> Network -> Network Connections -> Windows Firewall, and then open either Domain Profile or Standard Profile, depending on the profile which you want to configure.
  • Enable the following exception: "Allow inbound remote administration exception".

Enabling the exception: "Allow inbound remote administration exception"

If the issue still persists, please contact Vembu Support.

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