QuickBooks Database Server Manager Network Diagnostics Failed: Quick Things to Try

Fix the "QuickBooks Database Server Manager Network Diagnostics Failed" error with our step-by-step troubleshooting guide. Learn quick solutions like configuring your firewall, using File Doctor, and checking compatibility.

Jul 16, 2025 - 20:02
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QuickBooks Database Server Manager Network Diagnostics Failed: Quick Things to Try
QuickBooks Database Server Manager Network Diagnostics Failed: Quick Things to Try

When you run your QB Desktop app in multi-user mode, you may get an error reading QuickBooks Database Server Manager Network Diagnostics Failed. This error is most of the time caused by QuickBooks being blocked by Windows Firewall from accessing the internet, but it can be caused by a multitude of reasons.

Do not worry, however, were here to help you with this detailed blog. First, lets see what QuickBooks Database Server Manager Network Diagnostics Failed really means.

QuickBooks Database Server Manager Network Diagnostics Failed - Defined

For running your QuickBooks application in multi-user mode, you need a database server that allows other users to access files stored on the computer. Sometimes, while using QB, you can see the message QuickBooks Database Server Manager Network Diagnostics Failed. Lets see the potential causes for the same.

Potential Causes For Seeing QuickBooks Database Server Manager Network Diagnostics Failed Error?

We know that seeing the QuickBooks Database Server Manager Network Diagnostics Failed error can be quite frustrating, so lets see the causes of this error.

  • The QuickBooks Desktop version youre using is outdated.

  • Your Windows Firewall is preventing QuickBooks from accessing the internet.

  • You have hosting marked as off on the server.

Now that we know the root causes of this error, lets proceed towards fixing the issue.

Things You Can Try to Resolve the QuickBooks Database Server Manager Network Diagnostics Error

The methods to solve the QuickBooks Database Server Manager Network Diagnostics Failed are given below:

Fix 1: Check Your Firewall

Step 1: Search for Windows Firewall in the start menu

Step 2: Click on Advanced Settings and right-click on Inbound Rules

Step 3: Select New Rule

Step 4: Click on Port and then press Next

Step 5: Navigate to the Specified local ports and enter:

  • QuickBooks Desktop 2020 and newer: 8019, XXXXX.

  • QuickBooks Desktop 2019: 8019, XXXXX.

  • QuickBooks Desktop 2018: 8019, 56728, 55378-55382.

  • QuickBooks Desktop 2017: 8019, 56727, 55373-55377.

Step 5: Enter your port number and click Next

Step 6: Select Next after pressing Allow Connection

Step 7: Name your new rule

Step 8: Press Finish

Step 9: Repeat the same process for setting up Outbound Rules

This should fix your issue. If not, proceed to fix 2.

Fix 2: Use QB File Doctor from QuickBooks Tool Hub

Step 1: Download and Install QuickBooks Tool Hub

Step 2: Open QuickBooks Tool Hub and navigate to Company File Issues

Step 3: Press Run QuickBooks File Doctor and wait for it to launch

Step 4: Select your company file in the dropdown menu

Step 5: Click on Check Your File and press Continue

Step 6: Enter your admin password and press Next

Step 7: After the scan ends, open QuickBooks again

Your issue should be fixed. If not, proceed to fix 3.

Fix 3: Check The Compatibility of QuickBooks Database Server Manager With The QB Desktop App

Step 1: Press Windows + R to open the Run menu

Step 2: Type Services.msc and press Enter

Step 3: Find QuickBooksDBXX and check if the last two digits match your QB app version

Step 4: If it doesnt, install the compatible version of QuickBooks Database Server Manager for your QB Desktop app

This should debug the issue youre facing!

Read more - A Comprehensive Guide: Renew QuickBooks Subscription

Final Words

Following the step-by-step methods provided above would mend the QuickBooks Database Server Manager Network Diagnostics Failed error. If youre still experiencing the same issue, please don't hesitate to contact our experts at +1-(855)-955-1942.
Frequently Asked Questions (FAQ) QuickBooks Database Server Manager Network Diagnostics Failed

1. What is the QuickBooks Database Server Manager Network Diagnostics Failed error?

This error typically appears when QuickBooks Desktop is unable to establish a stable multi-user connection due to network configuration issues. Its most commonly caused by firewall blocks, outdated software, or mismatched hosting settings on the server.

2. What does QuickBooks Database Server Manager do?

The QuickBooks Database Server Manager (QBDBSM) allows multiple users to access a company file in multi-user mode. It hosts your company files and ensures proper network connectivity between workstations and the host computer.

3. Why is my QuickBooks Database Server Manager failing diagnostics?

Common reasons include:

  • Windows Firewall blocking QuickBooks ports

  • Outdated version of QuickBooks Desktop or QBDBSM

  • Hosting not enabled on the server

  • Incompatible or mismatched database server manager version

4. H0w can I open the necessary firewall ports for QuickBooks?

You can manually add inbound and outbound rules for the following ports:

  • QuickBooks 2020+: 8019, XXXXX (dynamic port)

  • QuickBooks 2019: 8019, XXXXX

  • QuickBooks 2018: 8019, 56728, 5537855382

  • QuickBooks 2017: 8019, 56727, 5537355377
    Use Windows Firewall > Advanced Settings > New Rule to add them.

5. How do I use QuickBooks File Doctor to fix network issues?

  • Install QuickBooks Tool Hub

  • Navigate to Company File Issues

  • Select Run QuickBooks File Doctor

  • Choose your company file, then select Check your file

  • Enter your admin credentials, then let the tool scan and fix issues