Sometimes, you might get bothered while updating QuickBooks due to an internet connection issue. There are certain errors that can come across while attempting to update the program, such as QuickBooks error 12009, 12003, 12002, 12031, 12029, etc. In this blog, we will be looking deeply into QuickBooks error 12002, which mainly occurs because there are incorrect browser and security settings in place. Moreover, it can arise if an application like an antivirus or firewall program interferes with the update process. But don’t worry, you can fix it with the techniques that experts have suggested in the segment below. Read the blog from top to bottom and get this fixed.

If you don’t want to resolve QuickBooks error 12002, give a ring to 1.855.738.2784 and talk to our certified QB experts.

Main Contributors to the QB Error 12002

Below are the factors that might trigger such an error.

1. A poor internet connection can be one reason that leads to it.
2. Issues with the internet security or firewall can be responsible for the error.
3. When Microsoft Edge is not set as the default browser on your device.
4. It can be due to a network timeout, and QB is unable to connect with the server.
5. Incorrect SSL settings can trigger the error code 12002.

Ways to Resolve the QuickBooks Error 12002

Here are the quick and easy methods that you can use to eliminate the error. Let’s see how to implement them:

Solution 1: Switch to Selective Startup

1. Press Win+R to open the Run window.
2. Enter msconfig and choose OK.
3. Head over to the General tab.
4. Choose Selective Startup and Load System Services.
5. Go to the Services tab.
6. Click on Hide all Microsoft Services.
7. Tap on Disable all.
8. Now, you need to unmark the Hide all Microsoft Services.
9. Choose Windows Installer from the services list.
10. Click OK.
11. Head to the System Configuration window.
12. Choose Restart.
13. Here, you need to reinstall the QB program.
14. Press Win+R to open the Run window again.
15. Type msconfig and hit OK.
16. Head to the General tab.
17. Choose a Normal Startup.
18. Click OK and go to the System Configuration window.
19. Choose Restart.

Solution 2: Run the TLS 1.2 tool

1. Open the QB Tool Hub.
2. Choose Installation Issues and tap on QuickBooks TLS 1.2 Tool.
3. Click OK to open the TLS Tool.
4. Then, tap Yes to the EULA Agreement.
5. Choose Run and then click Exit when it is completed.

Solution 3: Configure the firewall manually

1. First, you need to launch the Start menu.
2. Enter Windows Firewall and open it.
3. Choose Advanced Settings.
4. Right-click on the Inbound Rules and then choose the New Rule.
5. Click on Port, and later you have to choose Next.
6. Ensure that the TCP option is chosen.
7. Hover over the Specific local ports field.
8. Enter the port number that needs to be done according to the QB year version.
   • QuickBooks Desktop 2020 and later: 8019, XXXXX.
   • QuickBooks Desktop 2019: 8019, XXXXX.
   • QuickBooks Desktop 2018: 8019, 56728, 55378-55382.
   • QuickBooks Desktop 2017: 8019, 56727, 55373-55377.
9. After entering the port number, choose Next.
10. Click on Allow the Connection.
11. Choose Next.
12. If you are prompted, make sure that all profiles are marked.
13. Choose Next.
14. Create a rule and name it as QBPorts(year).
15. When it is done, choose Finish.
16. Follow the above mentioned steps again to create Outbound Rules, but instead of choosing Inbound Rules in step 4, click on Outbound Rules.

The Last Line

Throughout the blog post, we discussed what QuickBooks error 12002 is and the reasons you might encounter it. Moreover, you will uncover a set of methods that are proven effective in resolving such types of issues. In case you don’t want to take a risk and prefer consulting a professional, give a call to 1.855.738.2784 and talk to our experienced QB professionals.

You may also read: QuickBooks Error 185, How to Fix it?