How to Fix QuickBooks TLS 1.2 Error: Internet Security Levels Error

QuickBooks is without any doubt, the most efficient accounting program, which is being used by accounting professionals and business owners. However, QuickBooks faces certain errors at times, which are its integral part only. So, while working on QuickBooks you may encounter TLS errors. . In order to use your accounting software in a hassle-free manner, you need to fix QuickBooks TLS Error as soon as it occurs. 

What is QuickBooks TLS error?

Data business puts its data at risk. QuickBooks has made its system compliant by following highly secure protocols (TLS 1.1 and TLS 1.2) . This ensures compliance with PCI data security standards. Some errors like QuickBooks TLS errors come up while updating QuickBooks TLS 1.2 update. . Occurrence of these errors comes with the following display- “QuickBooks TLS 1.2 failure Error” or it may show that QuickBooks requires TLS 1.2 for secure communication”. You can reach out to us at +1(888) 910 1619 and our team of experts will help you to fix it. 

QuickBooks TLS Error

Also ReadQuickBooks Banking Error 102: Resolve Easy Steps

What are the Effects of QuickBooks TLS Error

  • It may affect payroll Online banking payment, and other connected services. 
  • It may not allow activation of QuickBooks on new machines. 
  • You may not be able to utilize QuickBooks password reset tool. 
  • Services like my apps, secure webmail may not be accessible. 

Also Read: How to Get QuickBooks Banking Error Code 105

What causes QuickBooks TLS Error 1.2 validation failed issue?

  • Transfer Layer Security is an expanded form of TLS and the latest version of this protocol. It interacts with the internet browser. So, the reason for occurrence of this error are:
  • Using an outdated version of QuickBooks application. 
  • Internet  explorer is as per the requirement of the system. 
  • Users do not have sufficient administrative access. 
  • Disabled TLS 1.2 can also cause TLS errors. 

Also Read: How to set up QuickBooks Workforce

System requirements so as to avoid  QuickBooks TLS 1.2 error

  • Operating System- It is supported by OS windows 7, Windows 8.1, windows 10. Also Windows server 2008 R2, Windows Server 2012 R2, Windows Server 2016. 
  • Default Browser – To avoid  QuickBooks TLS 1.2 error, it is always recommended that Internet Explorer is your default browser for  QuickBooks application. 
  • .NET framework- It is required that your system has 4.5.2 or higher .NET framework. If it is not so, you should update or install it.

Troubleshoot QuickBooks TLS validation failed issues

Solution 1: You must configure the settings of the internet explorer. For this:

  • Open Internet Explorer.
  • Reach the tools option.
  • In the general tab, click Delete. 
  • Check mark the temporary internet files.
  • Delete these files.
  • Now, go to the connections tab. 
  • Herein, choose LAN.
  • Select the ‘Automatically Detect settings’ option.
  • If the proxy servers are not in use, uncheck the proxy server box.
  • Now head to the Advanced tab.
  • Check the SSL2.2.0 and SSL 3.0 box.
  • Check mark the publisher’ certificate. 
  • Check the TLS 1.2.
  • Also, uncheck Use TLS1.1 and TLS 1.0.
settings of the internet explorer

Also Read: QuickBooks Payroll Error 30159?

Solution 2: Setting internet explorer default browser.

  • Launch internet explorer.
  • Make sure the internet explorer is configured.
  • Navigate to the gear icon.
  • Go to Internet options.
  • In the programs option, reach the make default option.
  • Click Apply.
Setting internet explorer default browser


This solution will definitely help you in fixing TLS errors. Although, if the error is still persistent and you are unable to fix it, Don’t worry!! QBS Solved can help you to fix all your issues, you can reach out to us at +1(888) 910 1619 and our team of experts will help you to fix it. 

Read Also:
QuickBooks Web Connector QBWC1085: How to Fix
QuickBooks Error 1311: Easy Troubleshooting Steps
QuickBooks Error 6143 – How To Fix The Error Step by Step