How To Deal With QuickBooks Connection Has Been Lost
                     QuickBooks Connection 
Has Been Lost Error 
Eliminated Easily
QuickBooks company files contain the overall financial data of the business, and the 
software uses it for accounting tasks. QuickBooks Connection Has Been Lost message 
might sometimes trouble the users when they try opening their data file. If you also 
encounter this message while opening a company file, take the help of this blog to 
understand the triggers of this error and the applicable methods to remove it from the PC.
Resolve the error effectively with the guidance provided by a team of QB experts at 
1-855-856-0042 .

Reasons
QuickBooks mostly gets affected by this issue while opening a company file, and 
accessing the financial data becomes impossible once it occurs. The primary reasons for 
this data file issue to develop in your QuickBooks are mentioned below-
• QuickBooks cannot access the data file folder due to the lack of folder permissions 
required to access its contents.
• The company file was damaged during transfer to a different location on your PC or 
corrupted due to a virus attack.
• The data file location specified in the software is incorrect, and QuickBooks develops 
issues when it fails to locate the file.
Solutions
The company file won’t open in QuickBooks after the development of this error, or the 
software will crash whenever you make continuous attempts to access the file. You must 
use the methods given below to eliminate the issue from the software-
Solution 1- Set up the folder permissions to ensure QB 
doesn’t get blocked
You encounter this error message while opening the QB data file if the folder permissions 
aren’t properly configured. The software won’t be able to connect with the data file, and 
you’ll receive this error message on the screen. This is why you are recommended to 
always use the software in Admin mode to prevent it from getting blocked by the Windows 
Firewall or folder permissions. Here are the steps to arrange the folder permissions-
• Use your file explorer and go to the QuickBooks folder stored in the C: drive.
• Right-click on your QB folder and tap the Properties option in the list.
• Go to the Security tab and select the User account that caused this QB error.
• Tap Edit and manually select the Read, Modify, List folder contents and all the other 
checkboxes or mark the Full Control checkbox.
• Select the Apply option and close the tab.
If QBDT still fails to open the company file, try the next solution.
Solution 2- Repair your damaged data file using the File 
Doctor Tool
QuickBooks can also face trouble accessing the company file data if the file gets damaged 
and fails to run in the software. You’ll have to repair the company file using the following 
steps before trying to open it in QB again-
• Run the QB tool hub application on your computer and click the Company file issues 
menu.
• Click the Run QuickBooks File Doctor tool option and select the data file that needs to 
be repaired.
• Run the tool by filling in your admin account details and wait until the issues are 
resolved.
Conclusion
We have reached the end of your blog explaining why the QuickBooks Connection Has 
Been Lost error message interrupts you while opening a company file. The measures 
you must take to eliminate the issue are also given in the blog, which you can apply to 
access the data file without problems.
Speak to our QB support team at 1-855-856-0042 for further troubleshooting assistance.