How to fix qbcfmonitorservice not running issue?

I am facing qbcfmonitorservice not running on this computer issue

It looks like your topic is missing some important information. Could you provide the following if applicable.

  • n8n version:
  • Database (default: SQLite):
  • n8n EXECUTIONS_PROCESS setting (default: own, main):
  • Running n8n via (Docker, npm, n8n cloud, desktop app):
  • Operating system:

QuickBooks is the best accounting software the industry has to offer, but it can also be affected by internal issues like any other. QBCFmonitorservice not running on this computer is a majorly reported issue by users all over the world. So, we created this blog to help them understand why it happens and the techniques that can be used to eliminate the problem. Read this blog till the end to remove the error from your PC.


This is a common QBDT issue that stops you while opening a company file and sometimes while hosting it on the multi-user network. The reasons you encounter this QBDT issue on your PC are mentioned below in detail-
  1. Windows Firewall can restrict QB functions and stop it from running its background processes.
  2. QBCFMonitorservice.exe running in the background may get interrupted by other applications running on your PC.
  3. Your system data is infected with a virus, which might damage QB program files and develop this issue while working on a company file.


You’ll face trouble utilizing the company file if the QBCF monitor service stops running or crashes in the background. The following techniques will help you remove the issue and run QBDT efficiently-

Solution 1- Arrange Windows Firewall settings in favour of QBDT to prevent issues

Windows Firewall can limit the functions of QBDT and other PC applications that cause issues when they run. QBCFMonitorservice can also get affected by Windows Firewall restrictions, leading to issues when you try opening/hosting a data file. You can resolve the issues by adding specific firewall ports in the settings to ensure QBDT can bypass the Windows Firewall's restrictions and avoid developing any errors. Use the following steps-
  1. Open the Windows Defender Firewall menu from the control panel and click the Inbound Rules option.
  2. Select the New Rule option and tap Port before hitting Next.
  3. You’ll see UDP & TCP options in the next window. Click the TCP option and go to the Specific local ports option.
  4. Use the following list to add specific ports for the QBDT version you use-
  • QuickBooks Desktop 2017:8019, 56727, 55373-55377
  • QuickBooks Desktop 2018:8019,56728,55378-55382
  • QuickBooks Desktop 2019:8019, XXXXX
  • QuickBooks Desktop 2020 and recent:8019, XXXXX.
  1. Click Next after choosing the correct firewall ports and tap Allow the connection.
  2. Tap Next again and give any desirable name to the new rule you create.
  3. Save the changes by clicking the Finish option and relaunch QuickBooks.

If the QBCFMonitorservice still faces issues while running, move to the next solution.

Solution 2- Stop QBCFMonitorService.exe using the task manager

You can also encounter the issue if QBCFMonitorService running in the background gets interrupted by other PC applications or stops due to minor issues. You can fix the issue by stopping the background task as shown in these steps-
  1. Press Ctrl+Shift+Esc to run the task manager and go to the Processes tab.
  2. Single-click QBCFMonitorService.exe and click the End Task option.


We have reached the end of this blog, sharing the reasons for QBCFmonitorservice not running on this computer. The blog also comprises practical ways to counter the issue, and we hope they help you fix the issue and work on your company file without problems.