Use Effective ways to repair “QuickBooks connection has been lost” Error

QuickBooks is a renowned software for accounting and handling other monetary tasks that run a business. It provides all the features and services required to execute accurate and trustworthy accounting for any business. Indeed, it is the best accounting software but is prone to internal errors that directly impact the software’s functioning. QuickBooks connection has been lost is a blunder that develops while opening the company file on your computer. This blog contains the resolutions to this error and the practical methods to remove it. If you are also unable to open your company file in QuickBooks due to this error, continue reading the blog to fix this error quickly.

Call +1-855-856-0042 if you want an expert to take care of this issue.

Details of the error

This error develops in the QuickBooks while the user tries to open a company file. It indicates some internal issues with the windows OS or damaged QuickBooks installation. The failed installation of Microsoft components like the .Net framework can be one of the main reasons for this error. The QuickBooks can’t connect to the company file, and the software may crash or behave inappropriately after receiving the error.

Reasons of QuickBooks connection has been lost

The potential reasons this error occurs in QuickBooks are listed below-

  1. The installation/Update file is damaged or corrupted, leading to failure in the process.
  2. The Windows version on your PC is out of date and needs an update.
  3. Antivirus/Firewall is blocking QuickBooks from running some essential processes required for to open a company file on the server.

Solutions for QuickBooks connection has been lost

We have mentioned some of the solutions that will help you to fix this error in your QuickBooks-

Solution 1- Utilize QuickBooks Install Diagnostic Tool to repair the installation issues

You can run this tool from the QuickBooks Tool hub to fix the issues that occurred while installing QuickBooks. Refer to the steps below-

  1. Open QuickBooks Tool Hub on your PC.
  2. Click on Installation issues and then select QuickBooks Install Diagnostic Tool from the list.
  3. Let the tool run and automatically resolve the issues that occurred during installation.
  4. Try to reinstall QuickBooks.

If you are unable to open your QuickBooks company file, try the next solution.

Solution 2- Update your Windows to the latest version available to fix QuickBooks connection has been lost

QuickBooks is continuously upgraded to be compatible with the new versions of OS. So, QuickBooks can sometimes develop issues while running on an older Windows version. Follow the steps to update your Windows-

  1. Go to the Windows Update Settings from your search panel on the taskbar.
  2. Click on Check for Updates and wait for some time.
  3. Click on Download and Install when you see the new update available for your windows.
  4. Reinstall QuickBooks.

If the issue is still present, try the next solution.

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Solution 3- Run your computer in Safe mode to prevent QB processes from getting blocked

The benefit of using a selective start-up on your computer is that many background applications are stopped that might be interfering with the company file operations. The firewall is disabled, so it won’t cause any issues too. Open your computer in safe- mode and try reinstalling QuickBooks.

You’ll be able to open your QuickBooks company file properly after using these methods.


This is the finishing of this blog; we tried to explain the details of QuickBooks connection has been lost error. Now, you are aware of the reasons it occurred in your QuickBooks and the necessary actions to take against this error. We hope this blog helped rectify the error from your QuickBooks.

For any further assistance, talk to a QB professional at +1-855-856-0042.

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