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Proven Methods to Fix QuickBooks Error Code 12000 Smoothly

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• By Jonathan Browns
• Jul 14, 2025
• Accounting
• 7 min read

QuickBooks Error Code 12000 is the most common issue that might appear due to internet connectivity issues. In other instances, these issues may arise because of the incorrect browser and security settings. You may also confront this issue due to antivirus interference or the Windows firewall. Therefore, to rectify the issue, you must configure the internet settings and set the Windows firewall permissions properly. Herein, we have given all the possible solutions that will help you deal with the 12000 series of errors in QuickBooks.

List of QuickBooks 12000 Series Error

Below, we have provided you with a list of all the errors in the QuickBooks 12000 series. Let’s have a quick look at all of them.

Error	Description
QuickBooks Error 12 0	The users might confront this error while attempting to launch the data file in multi-user environment without having proper admin rights.
QuickBooks Error 12002	It is basically a payroll update error and appears when you fails to update payroll due to network timeout or poor internet connection.
QuickBooks Error 12007	This error strikes due to the improper connection between the internet and QuickBooks application.
QuickBooks Error 12009	You might confronts this error when you get the sudden internet connectivity loss issue while completing the installation of the application.
QuickBooks Error 12029	This issue might takes place when the QuickBooks application fails to locate the IP due to lack of internet connectivity.
QuickBooks Update Error 12031	It is basically an update error which might takes place when you couldn’t download the payroll updates because of the poor internet connection.
QuickBooks Error 12057	This error might appears due to the issues with the network connection.
QuickBooks Error Code 12152	Insufficient internet connectivity is the major reason behind the occurrence of this error.
QuickBooks Error 12157	When the internet connection crate issues with the download of the QuickBooks update the Error 12157 in QuickBooks appears on the screen.

Major Reasons Why QuickBooks 12000 Series of Error Appear

The major factors that might have been responsible for the arrival of the QuickBooks 12000 series of errors.

• Improper internet settings are one of the root causes that might create issues while updating the QuickBooks Desktop.
• Another major reason is incorrect Windows firewall or antivirus settings, which prevents you from installing the updates.
• Sometimes, the issue may also arise because of the inappropriate Network SSL configuration settings.
• In other cases, QuickBooks Error 12000 may appear when QuickBooks fails to establish the connection with the Intuit server.
• You are using an incompatible version of the Windows or QuickBooks Desktop.
• Corrupt or damaged company files may also cause 12000 Series Errors in QuickBooks.

Solutions to Resolve the 12000 Series Error Codes in QuickBooks Desktop

In this blog’s section, we have provided you with effective and instant solutions to deal with the 12000 Series Error Codes in QuickBooks Desktop. So, it is essential to implement the solutions in the same manner as given to prevent further discrepancies.

Solution 1: Examining the Internet Connectivity

Before downloading the latest QuickBooks or payroll updates, it is essential to ensure that you connect to a stable internet connection. This keeps websites secure outside of QuickBooks.

• Initially, you must download and then run the TLS 1.2 Utility.
  • To run the TLS 1.2, download and install the QuickBooks Tool Hub.
  • After this, opt for the Installation Issues > QuickBooks TLS 1.2 Tool from the bottom right corner of the screen.
  • Now, hit the OK tab to bring up the TLS tool and click Yes from the EULA Agreement.
  • Next, you must choose the Run tab and hit the Exit tab once the tool runs successfully.
• After this, start accessing a web browser like Google Chrome to check if you can access a secure website outside QuickBooks, like the login page of your bank.

Solution 2: Checking the Internet Explorer or Browser Settings

Inadequate Internet Explorer or browser settings are the major cause that triggered the QuickBooks 12000 series of errors. Therefore, to rectify the issue, you must configure the settings by implementing the steps below.

• Shut down the QuickBooks application and launch the default browser, such as Internet Explorer, Microsoft Edge, etc.
• Afterwards, switch to the Tools menu > Internet Options. If you are having trouble searching the Tools menu, hit the Alt key.
• Now, move to the Security section and locate the Globe icon. Also, ensure that the security level is set to Medium-high.
• Following this, reach the Connection section and then start looking for options like Never Dial a Connection.
  • If you access the dial-up node on your PC, then provide the accurate ISP and hit the OK tab.
  • Make sure you won’t pick the Never Dial a Connection tab of you won’t access a dial-up node on your PC.
• Thereon, you must move to the LAN settings and then go through the following settings.
  • Keep the checkbox of Use a Proxy Server unmarked.
  • Also, you must circle the checkbox if you have a proper address and port.
  • If your port address is other than 80, don’t circle the checkbox for “Use a proxy server.”
• Thereon, the users must move to the Advanced section and opt for Restore Advanced Settings.
• Following this, circle the checkbox to use TLS 1.2 in the settings section.
• Also, keep the checkbox for Use TLS 1.1 and Use TLS 1.2 unmarked.
• If the above option isn’t chosen, hit the OK tab and save all the necessary changes.
• Finally, when all the changes are made, the internet browser is shut down.

Solution 3: Make the Necessary Changes With The Windows Firewall

The interference of the Windows Firewall might create trouble installing the QuickBooks Desktop or payroll updates. So, to resolve the issue, you must add a firewall port exception in QuickBooks. As a result, it will help you get the latest updates without interruption.

Solution 4: Verify the Date & Time On Your Computer

Incorrect dates and times are also one of the major reasons that give rise to the 12000 series of errors in QuickBooks. Therefore, to rectify the issue, it is necessary to set the date and time accurately by performing the steps below.

• Primarily, shift to the desktop, and from the bottom right corner, right-click on the date.
• Afterwards, switch to the Adjust Date and Time option and then go further.

• Consequently, it will launch a new window wherein you must choose the Change Date and Time menu.
• Now, press the OK tab for confirmation and try launching the QuickBooks application again.
• End the process by downloading the latest payroll updates to see if the issue still exists.

Solution 5: Setting the Internet Explorer As Your Default Browser

Setting Internet Explorer as your default browser is essential to get the QuickBooks updates on your computer. Below, we have provided instructions for setting the default browser.

• In the beginning, launch Internet Explorer on your device and then look at the bottom right side of the screen.
• After that, tap the Tools icon and hit the Internet Options from the drop-down menu list.
• Thereon, you must choose the Programs tab and browse the Default Web Browser section.
• Following this, choose the Make Default tab and then opt for the OK tab.
• Finally, try to reopen the web browser and verify whether the QuickBooks 12000 series of errors still bother you.

Solution 6: Run Your PC in Safe Mode With Networking

If the above solutions don’t work, go through the steps to run Windows in safe mode with networking and then go with the update.

• Initially, hit the Windows Logo key + I to open the Settings window.
• After that, choose the System and then opt for the Recovery tab.
• Now, move to the Restart Now tab > Advanced Startup option.
• Once you relaunch your PC and move to the Choose an option screen, browse to the following path: “Troubleshoot > Advanced options > Startup Settings > Restart.”
• When you restart your PC, a list of options will present on the screen. Then, hit option 4 or the F4 key to run your PC in Safe Mode.
• Finally, update the QuickBooks desktop and verify whether the issue still persists.

Furthermore, move back to the safe mode and then continue with the following steps.

• Initially, launch the Run Command window, insert “msconfig, ” then hit the OK tab.
• After this, select the Boot tab and move further.
• You must keep the Safe Boot checkbox unmarked under Boot Options.

Solution 7: Try Installing QuickBooks in Selective Startup

Even after implementing the above solutions, you can’t fix 12000 Series Error Codes in QuickBooks Desktop. Try to install QuickBooks in Selective Startup mode.

Step 1: Enable the Selective Startup Mode

Move to Selective Startup mode to ensure no extra applications are interrupting. You can also seek assistance from your computer manufacturer or Windows expert to perform these steps.

• Launch the Run window and add “msconfig” in the search panel.
• After that, you must browse to the General tab and then go to the Selective Startup and Load System Services tab.
• Now, move to the Services tab and pick the Hide all Microsoft Services.
• Next, go with Disable All and make sure the Hide All Microsoft Services checkbox remains unmarked.
• Subsequently, choose the Windows Installer from the list of services.
• Thereon, hit the OK tab and then click Restart from the System Configuration window.

Step 2: Remove the QuickBooks Desktop application

Before you try installing the QuickBooks Desktop, remove the old version from your device.

• In the beginning, launch the Control Panel by adding a Control Panel in the search panel of the Start menu.
• After that, move to the Programs and Features option.

• As a result, it will present you with the list of applications installed in your System.
• Following this, right-click on the QuickBooks.exe file and hit the Uninstall option.
• Subsequently, the old QuickBooks version will be uninstalled from your System.

Step 3: Install the Latest Version of QuickBooks

To get the fresh QuickBooks Desktop version, you must follow the steps below steps below.

• Before installing, verify that your System meets the basic requirements for installing QuickBooks.
• Move to the Downloads and Updates page to download the latest QuickBooks version.
• After this, start installing the latest version of QuickBooks Desktop.
• Relaunch your computer after completing the installation of QuickBooks.

Step 4: Switch to the Normal Mode

Once you reinstall the QuickBooks Desktop application, you must return to normal mode to fix the issue.

• Primarily, you must bring up the Run Command window and insert “msconfig” in the search panel.
• Thereon, select the Normal Startup mode, which is present within the General tab.
• Later, hit the OK tab and choose the Restart option on the System Configuration window.

Conclusion

So, here we sum up this post and hope that the solutions explained above will help you troubleshoot QuickBooks Error 12000. Thus, it will let you get the latest updates without any interruption. So, if you are struggling with this issue, then connect with our QB professionals and get your issue resolved within the shortest possible time.