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Quickbooks Connection Diagnostic Tool

The QuickBooks Connection Diagnostic Tool is designed to troubleshoot networking and multi-user errors that can occur when you open a company file. If you’re experiencing H202, H505, or 6000 series errors, this tool can help.

To download this tool, please click here to visit the US QuickBooks Support site. This tool works for international versions of QuickBooks as well.

Run the QuickBooks Connection Diagnostic Tool

Run the QuickBooks Connection Diagnostic Tool on the server first, and then run it on the client computers. Doing it in this order helps determine the source of the error.

To run the tool:

  1. Exit QuickBooks on all computers on the network.
  2. Download and extract the QuickBooks Connection Diagnostic Tool on the computer where your company file is stored.
  3. Then, double-click the qbfd.exe file to install the tool.
  4. Once the installation completes, double-click the QuickBooks Connection Diagnostic Tool icon to run the tool.

You may also watch a 4 minute video of how to use this tool.

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