AADSTS1002016, you are using TLS version 1.0, 1.1 and/or 3DES ciphers

php editor strawberry reminds you that if you receive the error message "AADSTS1002016, you are using TLS version 1.0, 1.1 and/or 3DES cipher" when using some applications or services, it means that you are using The security protocol version is too low or the encryption algorithm is insecure. In order to protect the security of your data, please upgrade your operating system, browser or application as soon as possible to use a higher version of the TLS protocol and a more powerful encryption algorithm. This can effectively prevent the risk of hackers and data leaks. At the same time, you are also reminded to regularly update software and applications to keep your devices and data safe.

AADSTS1002016, You are using TLS version 1.0, 1.1, and/or 3DES ciphers

Use the following solutions to fix AADSTS1002016, You are using TLS versions 1.0, 1.1, and/or 3DES wrong password. Enable TLS version 1.2 via Control Panel Enable support for TLS 1.2 in your Azure AD environment Update your .NET Framework

Let’s take a look at all these fixes in detail.

1] Enable TLS version 1.2 via Control Panel

Some users reported encountering error messages when opening the Outlook application on Windows 11/10. This error message is caused by TLS version 1.2 being disabled on the system. To resolve this issue, you need to enable TLS version 1.2 on your system. Here are the steps to fix this error:

Open Control Panel. Select Large icons in View as mode. Click Internet Options. In the Internet Properties window, select the Advanced tab. Select the TLS 1.2 checkbox. Click Apply and then OK.

Now, open the Outlook application. This time there should be no error message.

2] Enable support for TLS 1.2 in an Azure AD environment

Users reportedly encountered an error when trying to connect Azure functions to the client tenant Azure. According to the error message, this indicates that you are using TLS version 1.0, 1.1, and/or 3DES ciphers. Microsoft has deprecated TLS 1.0 and TLS 1.1 due to security issues in Azure AD. If your Azure AD environment is still using TLS 1.0 or 1.1, then you will encounter this error. To resolve this issue, you need to enable TLS 1.2.

You can enable TLS 1.2 by executing the following command in PowerShell.

[Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12

Alternatively, you can enable support for TLS 1.2 in your Azure AD environment by following the instructions listed on the official Microsoft website.

3]Update your .NET Framework

If you still encounter the same error after enabling TLS version 1.2, the problem may be with the .NET Framework. You are still using an older version of the .NET Framework. TLS 1.2 requires .NET Framework version 4.7 or higher. Therefore, if you are using a .NET Framework version prior to 4.7, you will encounter this error after enabling TLS 1.2. To resolve this issue, install .NET Framework version 4.7 or higher.

That's it. I hope the solutions provided in the article help you solve your problem.

How to check if TLS 1.1 is enabled?

You can check whether TLS 1.1 is enabled on your Windows 11/10 system through Internet Options. Click Windows Search and enter Internet Options. Now, select the best matching result. In the Internet Options window, go to the Advanced tab and find TLS 1.1. If the TLS 1.1 checkbox is selected, it is enabled; otherwise, it is disabled.

How to enable TLS ciphers?

You can enable TLS cipher suite order by changing Group Policy settings. Open the Group Policy Management Console and navigate to the Computer Configuration > Administrative Templates > Network > SSL Configuration Settings path. Double-click the SSL cipher suite order and select Enable. Now, right-click on the SSL Cipher Suites box and click on Select All. Copy the selected text in Notepad and update it with the new cipher suite order list. Afterwards, replace the list in SSL cipher suites with the updated ordered list. Click Apply and then OK.

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