The QuickBook File Doctor is used to test your network and solve your network problems affecting QuickBook. Here are the exam results sections that describe in detail, including resources to solve your problems in each specific area. See the result of using the file doctor to resolve QuickBooks network issues.

QuickBooks Network Issues

When hosting mode is off

Accessing Your QuickBook Files When Networks Need to Turn on QuickBook Hosting

Important: If you are on a workstation computer then you should ignore this warning.

Turn on hosting

Hosting QuickBook Company data files in multi-user mode

A computer is storing a company file that allows another computer to access file Using the Hosting.

QuickBook Desktop is used to manage the company file

  • QuickBooksDB28 used by QuickBooks Desktop 2018.
  • QuickBooksDB27 used by QuickBooks Desktop 2017.
  • QBDB26 used by QuickBooks Desktop 2016.

You can find this service in the user account and users under this service. Keep in mind that the service matches your version of QuickBook Desktop.

How do you access your company files
There are 3 positions to access company files in QuickBook Desktop

  • Windows File Permissions: The logged-in user must have full control, which obtains permissions to view, modify, and open the file.
  • Database Server Mode: This can be used to open the company file.
  • QuickBook User Login: Each user has a QuickBook User Login ID and Password.

Finally, after completing these 3 situations, you can access your company file.

Hosting mode
Each version of QuickBook Desktop and every mode is set to hosting mode. When you use QuickBooks 2015 or later, many versions are used concurrently, the settings of each version are free in hosting mode.
There we use 3 types of hosting mode: not hosting (also called hosting of it), hosting only local files, and hosting local and remote files.

Not in Hosting Mode:

  • QuickBook Database Manager runs in the normal process when Windows users are running the QuickBook.
  • It does not support multi-user mode. It can not use shared memory to communicate with QuickBooks. In this mode, only QuickBooks users can use the database server to access the file on the local computer.

Only modes for hosting local files:

QuickBook Database Server Manager can only be run as a Windows services called QuickBook DB XX. (Where XX determines the number of books by sequence from 17 to 28 and describes under the “defined hosting”) and this is also for the Windows User QBData Service User X (XX is from the same 2-digit number 17 Up to 28 which uses the Windows service).

  • QuickBooksDBXX service is always running when the computer is on.
  • TCP to communicate with QuickBook? Supports multi-user mode while using IP. QuickBooks users can access company files when using database servers running only to host local files.
  • The Local Files Only mode can host the computers that are located on the computer where the computer is hosted.

In Hosting Local & remove files mode:

  • When the QuickBooks currently runs on the Windows user as a normal process than the database manager runs. When the user logs in with this process then starts and closes when the user logs out of the process.
  • It supports multi-user mode when using TCP / IP to communicate with QuickBook. You can access company files on this computer using a QuickBook User Database server on a remote computer.
  • Host files are stored in local computer mode and the file is found in the remote computer and is opened on the local computer.

Read More: QuickBooks Install Diagnostic Tool

How QuickBook Desktop determines which database to communicate with the server:
  1. QuickBook Desktop only looks for .nd file. This file is a small text file with the same name as a company file and a .nd file extension. This file is in the same directory as the file file, where the .qbw extension is used. It also includes the information required to contact the server, such as IP address and port.
  2. Where the .qbw file is used, it determines the QuickBook Desktop.
  3. When QuickBook Desktop gets the .nd file and it shows that the company file is in use compared to the QuickBook, attempts to communicate with the server:
    • If the result comes from successfully opening the company file from QuickBooks.
    • If the result is not successful with the error message that describes the steps needed to solve the problem.

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When the folder containing the file is not writable

This is included only in the company file and other users have been shared.

Important: (If you are on workstation then you should ignore this warning).

When there is no network connectivity

At least one working TCP / IP adapter is used and the hostname of the local machine is solvable.

Related Articles: QuickBook Connection Diagnostics Tool


You can get the IPConfig tool to verify your computer’s TCP / IP configuration. It helps solve troubleshooting problems using QuickBooks on the network.

To run Ipconfig:

  • Tap the Windows Start button.
  • Enter the CMD in the search field.
  • Click on the command prompt in the list of results.
  • Enter Ipconfig and press Enter at the command prompt.
  • Finally, get more info on ipconfig, ipconfig / enter? Go to the command prompt or go, is not an intuitive website.
Network problem: IP reverse lookup failed.

If the window can generate an IP address from the hostname and reverse the process, click.

QBCF Monitor Services / QBDMGN is not running or blocking firewall QuickBook

If you block Internet access to your firewall for specific QuickBook programs or files, then you may have to face errors. Uploading your firewall to the latest release resolves many issues or you need to manually configure the exception and ports for your firewall software manually.

QBCF Monitor service is not running:
  • Set up your firewall to open the 8019 port on the client and server for Tools and QuickBook applications.
  • Make sure the server is running.
  • Let the server sound. A voice must be successful from the client and the server.

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