Expert Guidance and Tips to Fix QuickBooks Error Code 12000

QuickBooks Error Code 12000

When it comes to managing finances and payroll, QuickBooks is a reliable and effective software solution for businesses of all sizes. From managing invoices to tracking expenses and creating financial reports, QuickBooks streamlines processes and helps businesses stay organized and efficient. However, encountering unwanted technical glitches and issues with the QuickBooks software is common for its users. QuickBooks error code 12000 is also a part of such common errors, which users may often come across while working on the software.

In this guide, we will briefly discuss some of the common errors related to the series 12XXX. Along with it, we will also share the possible causes behind the error and the troubleshooting steps that you can follow to resolve it. Therefore, make sure to read through this guide effectively to address and resolve any QuickBooks 12000 series error that you may be facing.

A Quick Glimpse About QuickBooks Error Code 12000 Series

QuickBooks error code 12000 series refers to a group of unwanted errors that users generally encounter when they try to update QuickBooks desktop or payroll to the latest available version. Also referred to as Windows connectivity errors, these are generally encountered via the Microsoft Win32 application programming interface.

These connectivity errors can disrupt the normal functionality of the QuickBooks accounting software and may prevent users from updating or accessing its advanced features. If you are also encountering this error, it becomes important for you to address it promptly. Ignoring these errors can lead to data corruption or the potential loss of your company’s financial information.

List of Common 12000 Series Error Codes

Some common QuickBooks error codes related to the 12000 series are mentioned below.

Error 12001 – Network timeout during the updateError 12002 – Unable to access the server
Error 12006 – QuickBooks update failed due to networkError 12007 – Network connection issue in QuickBooks update
Error 12008 – QuickBooks fail to connectError 12009 – Internet connectivity problem while updating QuickBooks
Error 12029 – QuickBooks unable to access the server networkError 12031 – QuickBooks unable to connect due to network timeout
Error 12052 – QuickBooks encountered a server timeout errorError 12057 – QuickBooks encountered a connectivity issue
Error 12152 – QuickBooks encountered a server connection issueError 12157 – QuickBooks encountered a network connection problem
Error 12165 – QuickBooks encountered an unknown errorError 12173 – QuickBooks faces an unexpected error

Factors Triggering QuickBooks Error Codes 12000

Though there can be various factors or reasons that may trigger the occurrence of QuickBooks error 12000, some common reasons behind the error are listed below;

  • If the SSL settings are incorrect or outdated, the QuickBooks software can experience various server connection issues.
  • Unstable or poor internet connection.
  • A sudden power outage during the updating process can trigger QuickBooks 12XXX series errors.
  • Active firewall settings can also block the QuickBooks software from establishing a secure connection with the server, which may lead to error code 12000.
  • If you are using an outdated version of the QuickBooks desktop, then it may not be compatible with the latest security protocols and may end up with the occurrence of QuickBooks error code 12000.
  • Incorrect installation or missing components of QuickBooks can also lead to various errors, including 12000 series error codes.

How to Fix QuickBooks 12000 Series Error Codes?

In order to resolve the various technical errors with the QuickBooks software lying in the 12000 series, you can perform any of the solutions listed below. Let’s discuss each of them in more depth.

Solution 1. Configure the Internet Explorer Settings

QuickBooks uses the Internet Explorer browser to connect with the server and process the user’s request. So, if the browser’s settings are incorrect, it can result in the occurrence of QuickBooks error code 12000. Therefore, we recommend you verify the Internet Explorer browser’s settings as the utmost priority.

  • Firstly, close the QuickBooks desktop software and run the Internet Explorer browser on your computer.
  • Choose the Tools option from the menu bar and click on Internet Options.
Internet Option 2
  • After that, switch to the Advanced tab and move the cursor to the Security Group.
  • Therefore, make sure to clear the checkbox for the following options: check for server certificate revocation and check for publisher’s certificate revocation.
  • Click on the OK option, and the new changes will be applied to the browser’ settings.

Now, close the Internet Explorer browser on your computer and try to download the payroll updates again.

Solution 2. Monitor the Internet Explorer Settings

Given below are the actions that you can follow to monitor and review the Internet Explorer settings on your computer;

  • Again, run the Internet Explorer browser.
  • Navigate to the Tools menu and choose Internet Options.
  • Switch to the Security tab, and then click on the Globe icon.
  • Here, you have to ensure that the security settings is selected as the medium-high option.
  • Moving ahead, click on the Content tab and ensure that the Content Advisor option is enabled.
  • If not, then click on it, followed by providing the password and disabling the content advisor option.
  • Now, navigate to the Connections tab and set up the dial-up settings if needed.
  • If the dial-up settings are enabled, then make sure that the right ISP is being used and click on the OK option.
  • Scroll down to the LAN Settings and ensure that the Automatic Detect Settings are enabled.
  • Verify that the proxy server settings are cleared. Wherever there is a checkmark in Use a Proxy Server settings, provide the address and port for it.
  • If the port is higher than 80, avoid unchecking the Use a Proxy option. This is not applicable for ports mentioned as 80.
Fix QuickBooks Error Code 12000 with Internet Option
  • Thereon, click on the LAN Settings option and then choose the Advanced tab option.
  • Click on Restore Advanced Settings and search there for TLS Settings.
  • Subsequently, verify that the TLS 1.0 option is a checkmark and that TLS 1.1 and TLS 1.2 are unchecked.
  • Hit the OK option to save the updated changes.
  • Close the Internet Explorer web browser and restart your computer.

Solution 3. Verify Connectivity Settings

  • First, verify that you are able to access secure financial websites other than QuickBooks. This will help determine whether the issue is specific to the QuickBooks software or if there is a general network connectivity error.
  • In case you are unable to access the financial websites, we advise you to seek immediate assistance from a trained technician or expert.
  • Following that, check the SSL settings and make sure that the Internet Explorer browser is selected as the default browser on your computer.
  • If the issue persists, reset the Internet Explorer settings to their default and clear the history, cache, and cookies.

Additional Solutions to Fix QuickBooks 12000 Series Error Codes

Apart from the above-mentioned solutions, there are various other troubleshooting steps that you can execute to deal with the QuickBooks error code 12000. These are mentioned below;

  • Reset the previous QuickBooks updates and install the latest available ones.
Update QuickBooks Option
  • Disable antivirus settings.
  • Run the QuickBooks Install Diagnostic Tool.
Install Diagnostic tool
  • Install QuickBooks software in selective startup mode.
  • Reinstall QB in selective startup mode.
  • Download the new Windows update on your computer.
  • Get in touch with the QuickBooks support team.


Dealing with the QuickBooks error code 12000 is not a haunting task. By following the troubleshooting steps mentioned above, you can effectively address the underlying causes behind the error and implement the necessary solutions to fix it. Remember that addressing the QuickBooks errors on time is important to ensure uninterrupted workflow and maintain the security of your company’s financial information. If you encounter any issues while performing the troubleshooting steps, then don’t hesitate to get in touch with the QuickBooks support team for further assistance.