Have you ever encountered a message saying QuickBooks lost connection, and you won’t be able to use QB properly? Don’t worry, this is not hard to resolve. And for this, you have been provided with some troubleshooting methods in the section below.


The reasons that we can consider for causing this issue are the use of an external portable device, network connection issues, corrupted company files, etc. The following is the message that pops up on the screen:


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


To bring your QB application to the previous, have a walk-through of this post, and implement the solutions as mentioned.


You don’t need to panic if you fail to rectify the QB connection issue. Simply give a call to 1-855-888-3080 and talk to an expert for assistance.

Know the Reasons Why QB Lost Connection

The QuickBooks connection has been lost due to the reasons mentioned below:


  • The primary reason for it is the enabled power-saving mode.
  • An outdated QB can be one cause for it.
  • This can get triggered by external portable devices where you are keeping your company files.
  • Corrupted company files can cause it.
  • It can be due to an unstable network connection.

Step-by-Step Guide to Solve the QuickBooks Lost Connection

Let me walk you through the solutions below and help you rectify connection lost issues in a very short time. See how:

Way 1: Restart the QB application

In the first place, you can try to restart the computer and see if it was just a simple technical glitch. Sometimes, issues get resolved just by following simple tricks.

Way 2: Run Quick Fix my Program

  • Open QB Tool Hub.
  • Choose Program Problems.
  • Click on the Quick Fix my Program option.

Recommended to read: How to fix QBCFMonitor service not running on this computer in QuickBooks

Way 3: Use QB File Doctor

  • Access the Tool Hub.
  • Choose Company Issues.
  • Click on the Run QuickBooks File Doctor option and wait for a minute to open it.
  • You may notice that the tool fails to open, and you will have to manually open it by searching the QuickBooks File Doc.
  • Now, hover over the company file dropdown and look for your file.
  • If your file is not present there, click on the Browse and search open to find it.
  • Tap on Check your file (middle option only).
  • Choose Continue.
  • Enter QB admin password.
  • Click Next.
  • This will take some time to complete the scanning process.
  • After the scanning is finished, open QB and the company file.

Way 4: Update QB to the recent version

  • Go to the Help menu.
  • Choose Update QuickBooks Desktop.
  • Click on Update Now.
  • Tap Get Updates.
  • After this, you will need to close the QB and start the computer. Doing this will apply the updates to the system.

Wrapping It Up

We hope that the blog has clearly explained to you what the “QuickBooks Connection lost" issue is and what leads to it. Along with the causes section, you have been given a section including some methods to fix it. If you are still stuck with this issue and prefer to consult a professional, dial 1-855-888-3080 and talk to an expert.


You may also read: Understanding and Troubleshooting QuickBooks Error 1601