Came across an annoying pop up message stating as “The connection to the company file has been lost. QuickBooks must close immediately. Any unsaved data will need to be re-entered” and don’t know how to deal with it? Well, there can be numerous underlying reasons causing connection issues. Often while working with the company file, such errors abruptly appear and hinder the entire working process. A difficulty in accessing the company file might lead to such kind of error. Also, in case the system turns to sleep mode, then the user can end up in this error. Or if the internal network card of a system is also set to go into the sleep mode after a certain period of time, then it might lead to the lost connection issue. In today’s post, we are going to discuss in detail the causes and fixes to this annoying error.

At the time when you are trying to access the company file you may see the following error message on your screen:

Connection Has Been Lost

The connection to the company file has been lost. QuickBooks must close immediately. Any unsaved data will need to be re-entered.

Error Message - Connection has been lost - Screenshot

Thus, make sure that you stay tuned with this post till the end. Or if you are in search of a QuickBooks professional or a team who can assist you in the process of getting rid of any such error, then here we are. Give us a call at our toll-free number i.e. 1-888-291-2294 and our QuickBooks enterprise support team will be there at your rescue.

You may also read: Troubleshooting steps for QuickBooks error 1935

What Causes Error message: Connection Has Been Lost?

  • This error can be caused if the company file is stored on another system or on a portable drive and connection the storage device was disrupted
  • Another factor causing the issue can be if the power management settings in windows activated the sleep or hibernation mode on the system having the company file
  • The user can also face such issue if more than one system on a network is configured to host the QuickBooks company file
  • In case the systems in a multi user installation are running different versions of QuickBooks
  • Or if the data in the company file gets damaged somehow

If you use a standalone system

There can be a couple of factors causing this issue, out of which we have enlisted some of the common ones below:

  • Any antivirus blocking the QuickBooks desktop
  • Or if the QuickBooks company file got corrupted
  • The user might also face certain issue if the folder where the company file is saved requires some additional permission

Quick tips before troubleshooting the error

Before you jump on to the detailed procedures to get rid of the QuickBooks connection lost issue, here we have a few of the quick tips that could help you to get rid of the error with ease:

  • The user can restart the database server manager
  • Moving the file to a different folder
  • Setting power saving option to never

Methods to fix the connection has been lost error in QuickBooks

There can be a couple of methods that can be adopted to troubleshooting of the QuickBooks connection lost error. However, for best results, it is recommended to follow the solutions in the prescribed order. So, let us have a look at the methods one by one:

Method 1: Restarting your system and QuickBooks desktop

Restart your PC - Screenshot

Many times, a mere reboot can work in resolving the issue. Thus, before implementing huge and tedious solutions, we would recommend the user to start with restarting the software and check if the error rectifies with this simple process.

Method 2: Running the quick fix my program from the QuickBooks hub

The QuickBooks tool hub is a great tool in fixing various QuickBooks related errors. In order to make use of this tool, the user will have to turn off the QB software. The steps involved in this process are as follows:

Step 1: Downloading and installing QuickBooks tool hub

  • First of all, close QuickBooks
  • And then download the QuickBooks tool hub program. The user is supposed to save the file where it can be accessed without any issue
  • The next step is to open the file downloaded in the above step
  • And then carry out the onscreen prompts and complete the installation process. Also, make sure to agree to the terms and conditions
  • After the install finishes, make sure to double click the icon on the windows desktop to open the tool hub
QuickBooks Tool Hub - Logo

In case the user is unable to spot the icon, browsing for the same can be a quick fix to it.

QuickBooks Tool Hub - Screenshot

Read Also: What is QuickBooks connection diagnostic tool?

Step 2: Running QuickBooks file doctor from QuickBooks Tools hub

Now that you have downloaded the QuickBooks tool hub, you can easily access the QuickBooks file doctor tool

For the ones whose company file is stored on a portable drive, the below steps are applicable:

The company file should be stores on the local drive, and working on the company file till the time it is sitting in a portable drive, such as a flash drive is not recommended. The user can proceed with the steps knowing the risk:

Checking the portable drive

  • The user is supposed to ensure that the portable drive is connected. Or you can make an attempt to:
    • Disconnect and reconnect it
    • Spotting the QuickBooks company file on the removable drive from My computer
    • Or saving other files to the drive to ensure that it continues to work
  • The user is also required to ensure that the drive has plenty of available space. The drive should have at least the space equals to the size of the company file.

In case the system is connected to a network and the data file stored on another system:

  • The network connection might be unstable
  • Folder having the file is saved might need additional permission
  • Firewall is preventing the access over the network
  • Power saving mode is turned on

The network can be broken in several ways:

  • The user might have seen a windows error or similar problem on the system
  • The server or the host might have a similar issue
  • Or there might some issue in the connection of the systems

Method 3: Checking the network

It should be noted that the wireless networking is not supported by QuickBooks and is not reliable for information like the company file:

  • The user needs to open or save another file on the server to ensure that have the necessary access
    • The user needs to create and delete Microsoft excel or wordpad file on that system
  • In case the user is unable to create and delete a non-QuickBooks file in that folder. The user needs to set up windows access permissions required for QuickBooks

Another point that the user should note is that if the network isn’t working or if the user is uncomfortable carrying out the steps, then consulting a professional is recommended.

Method 4: Disabling the power management settings on the server

Another method if to disable the power management settings on the server. The steps involved in this process are as follows:

  • On the system where the company file is stored, the user needs to open the power management settings in the windows control panel
    • Press windows key
    • And then type power options, and then select the power options from the results
  • The user needs to turn off all sleep, standby, and hibernation modes on the host system. The user needs to refer to windows help and support for any further information about power options.

Read this also: Fix QuickBooks Validation code issues

Method 5: Fixing the hosting on all systems

Hosting system tasks:

In case the QuickBooks is installed on the host system, the steps below should be followed:

  1. The user needs to first open QuickBooks
  2. And then select file and utilities option
    • In case the user finds the stop hosting multi-user access in the menu, then hosting is enabled, and the user can proceed to the next step
Stop Hosting Multi-User Access - Screenshot
  1. In case the host multi-user access is seen, then select it to enable hosting on this system and then move to the steps ahead.
Hosting Multi-user Access-in QuickBooks - Screenshot

If QuickBooks is installed on the host system:

  • For this, the user needs to double click the QuickBooks database server manager icon in the windows system tray. (The user needs to select Start > all programs > QuickBooks > QuickBooks database server manager)
  • After that, the user needs to click the database server tab
  • Also, the user needs to verify that the company file is visible in the window below currently connected company files and logged in users. In case it is not, then the user needs to click the scan folders tab and then click on help for the information about adding the company file
Scan Folders - QuickBooks database Server manager
  • The last step is to close the QuickBooks database server manager window.

Method 6: Removing and re-creating the .nd file

Intuit QuickBooks Database Server Manager (GIF Image) - Screenshot

The user needs to scan the folder where the company file is situated to create the network descriptor file. The .nd file stores information about the system that is hosting the file. The steps involved in this process are as follows:

  • The very first step is to press windows and then type QuickBooks database server manager
  • And then choose the QuickBooks database server manager and then click on the add folder option and spot the folders storing the company files
  • The next step is to click on scan after the folders are added
  • Now, the data files appear under QuickBooks company file and then hit close
  • To end the process, the user needs to browse to the folders containing the company files and make sure that the file .band was created for each company data file

The point too be noted here is that if the user is unable to spot the QuickBooks database server manager in the programs list, then it is recommended to uninstall QuickBooks and reinstall selecting the second option.

Workstation tasks

  • The user needs to ensure that the hosting is turned off
    • For this, the user needs to open QuickBooks
    • And then select file and utilities tab
      • If the stop hosting multi-user access appears, then select it to disable hosting on the system
      • In case of host multi-user access appears in the menu, the hosting is already disabled and move ahead
  • After that, open the company file using a UNC path
  • UNC is basically a common syntax windows uses to describe the location of a network resource. The user can open the company using the UNC path by carrying out the below steps:
    • First of all, open QuickBooks
    • And then select file and open or restore company
    • The next step is to select open a company file and then click on next
    • After that click on my network places
    • And then double click entire network and navigate to the location on the server
    • And lastly, select the company file and hit open

The user is recommended to ensure that he/she is connected to the network using wired connection configure firewall and then add QuickBooks firewall ports set up folder permissions to share the company files.

See Also: Methods to resolve QuickBooks Error Code 6094


In this post, we have tried to cover all the aspects related to the QuickBooks connection has been lost error. Carrying out any of the methods that we have discussed above might be of great help in getting rid of this annoying error. However, if any information is missed out or if any of your queries remained unanswered, then feel free to contact our QB professionals via our toll-free number i.e. 1-888-291-2294. You can ask our QuickBooks error support team to fix the error on your behalf.

We work round the clock to provide the best possible support services to QuickBooks users across the globe. Thus, feel free to call us anytime, and our experts will there to assist you. Give us a call anytime, and leave the rest on us!


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