QuickBooks depends on the quality of the internet connection on a system for most of its online tasks. Users encounter QuickBooks error 12002 when the software fails to connect with the Intuit servers or the internet connection lapses during an ongoing task. If you also come across this connectivity issue in your QuickBooks, go through this complete blog to explore the causes of its occurrence and adequate ways to rectify it.

A QB support team is always available at +1-855-738-2784 for your assistance in troubleshooting.


This is a general network connectivity issue caused by the following reasons-

  • Inappropriately set SSL settings on your Windows to block the internet connection.
  • You use a third-party web browser that is incompatible with QuickBooks.
  • Your network connection provides low internet speed, which causes lapses in the connection to the internet.

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The following methods will help you rectify this network connectivity error QuickBooks-

Solution 1- Verify that the Internet speed on your system is adequate to run QuickBooks

A lousy internet connection is a significant reason you run into this error while performing an online task in QuickBooks. A poor internet speed causes data loss in the internet connection, which breaks contact with the servers and damages files during the download. You must check the internet speed on your system and compare it with the requirements of QuickBooks to run smoothly. Follow these steps to find out the internet speed on your system-

  1. Visit Google on your web browser and type ‘Internet Speed Test’ in the search bar.
  2. Click Google search or press Enter.
  3. Select the first link that appears in the search results to run the test.
  4. Compare the test results with the QB requirements of 3Mbps and 1.5Mbps.

You should upgrade your network connection if your system’s speed is inadequate. QuickBooks and other PC applications will also suffer problems due to a low internet speed. If the internet speed is in accordance with QB requirements, try the next solution.

Solution 2- Fix the SSL settings and set the default browser in Windows

Secure Sockets Layer (SSL) settings safeguard your PC from getting harmed by unwanted threats that may enter your system through the internet. Improper setup of these settings can cause QuickBooks to fail while connecting to the internet. Follow the steps below to fix the SSL settings-

  1. Open the Run window with Windows+R.
  2. Enter ‘inetcpl.cpl’ in the blank field and click Ok to go to the Internet Properties window.
  3. Go to the Advanced tab and scroll down for SSL settings.
  4. Single-click the checkboxes beside Use SSL 2.0 & Use SSL 3.0 to mark them.
  5. Close the window after saving the settings.

Once the SSL settings are configured, you must also set the default browser in your Windows. This prevents issues in QuickBooks due to incompatibility with an unsupported third-party browser-

  1. Search ‘Default apps’ and open its window from the results.
  2. Go to the Web Browser option, select Internet Explorer/Microsoft Edge as the default browser, and save the settings.

The network connectivity issues in QuickBooks will not create problems after applying these methods.


This blog helps users understand the triggers for QuickBooks error 12002 and the easy methods to terminate it. After applying the solutions, we hope this network connectivity issue is now resolved from your QuickBooks.

If you face any problems while using the techniques, talk to a QB support team at +1-855-738-2784 for assistance.

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