Applicable fixes for QuickBooks connection has been lost error QuickBooks is an accounting software that makes bookkeeping and recording transactions in real-time easy for business owners. However, they can sometimes run into QuickBooks connection has been lost message while accessing their financial data in the company file. If you also face this error on your QBDT, keep reading the blog to understand why this error develops and the methods to eliminate it from your PC. Feel free to approach our QB support team at 1.855.738.2784 to terminate the error quickly. Why this error message stops you from opening the data file? You’ll encounter a connection error QuickBooks while opening a data file or hosting it on the multi-user network to share its data with others. The possible reasons the company file fails to open due to this error message are• The company file is moved to a different location on your PC, and QBDT develops issues when it cannot trace its path to the file. • The company file incurs damage from a virus attack or data corruption and fails to run in the software. • Database Server Manager crashing in the background can also make the company file inaccessible to the users. Elimination methods to remove the data file error You’ll keep bumping into connection has been lost error message while opening a company file until you take the required actions to fix it. The feasible ways you can remove this error from your QBDT are mentioned below- Solution 1- Terminate the data file issues using the File Doctor tool Your QuickBooks might even crash after displaying this error message when its connection to the company file breaks. The unsaved data in the software might be lost, and you’ll keep running into this recurring error whenever you try opening the data file. This happens if the company file takes damage from a virus attack or corruption in the HDD and becomes unreadable for the software. You can easily fix the issue by fixing the data file using the File Doctor Tool available in the QB tool hub. Here are the steps1. Download the newest QB tool hub version (1.6.0.3) from the official QB website and install it on your PC. 2. Launch the QB tool hub and single-click the Company file issues option. 3. Select the Run QuickBooks File Doctor tool option and specify the company file location using the Browse option. 4. Select the Check your file option and run the tool by entering your QB Admin password. 5. Let the tool finish and reopen your company file in QuickBooks. Move to the next solution if the data file error appears again. Solution 2- Reboot your system and configure the power management settings QuickBooks can sometimes fail to connect with the data file due to minor issues that develop randomly in the software. You must also configure the Power management as some PC modes can limit the use of system resources for system applications, which can cause problems opening the data file. Use these steps1. Click the Start option in the taskbar and reboot your system from the Power option. 2. Open the control panel and go to the Power Management settings. 3. Disable power saving, sleep, and hibernation modes that might lead to this error. 4. Try opening the company file in QuickBooks again. Conclusion This is the end of our blog discussing the causes of QuickBooks connection has been lost error message while running a data file. The techniques you need to prevent the error from blocking the company file access are also mentioned in the blog, and we hope you use them to avoid QB data file errors in the future. Talk to our QB support team at 1.855.738.2784 for further assistance troubleshooting the issue.