What Causes the “Firewall is Blocking QuickBooks” Error?

After receiving numerous reports from multiple users, we decided to investigate the issue and devised a solution to fix it completely. Also, we looked into the reasons due to which it is triggered and listed them as follows. Now that you have a basic understanding of the nature of the problem, we will move on towards the solutions. Make sure to implement these in the specific order in which they are presented to avoid conflict.

Solution 1: Configuring Firewall Ports

Firewall ports need to be configured to allow the application to access the internet. You can automatically configure these ports by downloading and running this application. If for some reason you don’t want to do it automatically, follow the steps below.

Solution 2: Adding Firewall Exception

It is important the QuickBooks program also has an exception in the Firewall because sometimes, the Windows’ Firewall can block the application entirely in spite of the ports being open. Therefore, in this step, we will be adding the QuickBooks program as an exception to the Firewall. For that:

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