What the TLS Client Credentials?

The Transport Layer Security (TLS) is a protocol that was designed to ensure secure communications over the Internet using encryption that is end-to-end and verification of authenticity as well as identity verification.

If an TLS connection is made the server will issue an SSL certificate to the client. The client is then able to verify the authenticity of the server by looking for the presence of an Internet security protocol referred to in the field of Client TLS.

If the certificate does not correspond with the protocols, you’ll get the error message 36871 The fatal error was encountered during the creation of the TLS credential for a client. The error’s internal state is 10013.

The “A fatal error occurred while creating a TLS client credential. The internal error state is 10013” message indicates an issue during the establishment of a secure connection using the Transport Layer Security (TLS) protocol. Let’s break it down:

1. Cause: This error occurs when the client and server cannot agree on a mutual cipher to use for secure communication.
2. Resolution Steps:
   • Check TLS/SSL Settings: Review your TLS and SSL settings to ensure they match between the client and server.
   • Registry Key Configuration: Older Microsoft documentation suggests using a registry key with DWORD enabled = 1, while more recent information recommends DWORD enabled = ffffffff. Testing has shown that the latter value (ffffffff) works effectively.
   • Nartac’s IIS Crypto: If you’re using Nartac’s IIS Crypto, it sets the value to ffffffff as well.

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What is the Reason for this Error? When the Process of Creating an TLS Client Credential?

The cause lies in the fact that the program an application that requires a connection to an internet server. Although the internet is functioning properly, the client could not understand the message transmitted by the server.

It indicates a glitch that is related to the protocols. The error message could also be pointing to an issue with the TLS security protocol.

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There’s a requirement to unlock data that was encoded. The problem is what to do to convert the information returned to the format in which it is readable.

There is also the Event ID 36871: A fatal error was encountered while creating an SSL (client or server) Credential. The internal error status is 10011.

But, it’s not necessary to confuse it with the problem we’re dealing with since it’s a completely distinct issue something to do with email server.

Additionally, an Event ID 36871: A fatal error was made when creating the TLS credentials for the client RDP which occurs because it is impossible to access the remote desktop using Windows Server 2012.

Most of the time, this data can be found in the registry system of the Windows PC.

There are a few possible solutions that you may explore to correct the issue.

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A FATAL ERROR OCCURED WHILE CREATING A TLS CLIENTS CREDENTIALS THE INTERNAL ERROR STATE IS 10013 For Windows 10 or 11

Method 1: Enable TLS 1.0 and 1.1 Protocols

1. Press – Windows+R.
2. Type: ncpa.cpl.
3. Click OK or hit Enter.
4. After your Internet properties window is open Click on the Advanced tab.
5. Scroll down to check both Make sure you are using TLS 1.0 and Use TLS 1.1.
6. Simply click Apply and click click OK..
7. Reboot the device and check if the error A fatal error occurred while creating a TLS client credential still appears.

Method 2: Registry tweaks to correct the internal error state is 10013.

1. Click – Search.
2. Type – regedit. 
3. Hit – Enter.
4. On User Account Control prompt, select – Yes.
5. The Registry Editor will go to the Registry Editor.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\SecurityProviders\SCHANNEL\Protocols\TLS 1.2\Client

1. Navigate to the right side Select the right-click option and then New option. the DWORD (32-bit) value.
2. The value should be named that is disabled by default..
3. Double-click on this value and type in Value data zero.
4. Click – OK.
5. Similarly, create one more value named, Enabled . and put value data 1 for this.
6. Close the registry editor and restart the PC.

For Windows Server

Method 3: Allow Transport Layer Security Protocols that are no longer in Use:

1. Select the icon IIS Crypto GUI to download the application.
2. Double-click on IISCrypto.exe and then launch the application.
3. The default is to open using an tab called Schannel tab.
4. Take a look at the TLS 1.0 and TLS 1.1 in both the Protocols for Servers and Clients section.
5. Click on – Apply. The protocols that are no longer in use.

Method 4: Resolve a Fatal Error that Occurred when Making the TLS client Credential Through the PowerShell Script

Additionally, you can make TLS 1.2 by using an application script. Just follow these steps

1. Download TLS1.2_Enable.
2. Extract the file and unpack the file.
3. Right-click the TLS1.2_enable.ps1 and choose Run using PowerShell.
4. Alternately, you can launch PowerShell ISE.

Conclusion

It was explained why an error that is fatal when the process of creating the TLS Client Credential. The error’s internal state is 10013. The fix to this issue is to configure the TLS 1.2 to Windows Server. Windows Server. Once you have done that, you won’t get Event ID 36871 errors appearing in Event Viewer.