Authentication Error Has Occurred Remote Desktop

Tech support scams are an industry-wide issue where scammers trick you into paying for unnecessary technical support services. You can help protect yourself from scammers by verifying that the contact is a Microsoft Agent or Microsoft Employee and that the phone number is an official Microsoft global customer service number. Delphi ds150e keygen download. In March, Microsoft released a security update to address vulnerabilities for the Credential Security Support Provider protocol (CredSSP) used by Remote Desktop Protocol (RDP) connections for Windows clients and Windows Server.

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Microsoft has released a few security patches in March 2018 to fix the vulnerabilities for the CredSSP (Credential Security Support Provider Protocol) used by the Remote Desktop Protocol in Windows Server. But a recent update has made CredSSP Authentication error in RDP and caused hindrance to many users.

Microsoft pushed the update of May 2018 to harden the security by making it mandatory for both client and server computers to have the update installed. This resulted in windows servers not accessible via RDP for many users and made many to reboot their servers to fix the issue thinking it as a server side issue. This blog helps you on how to fix the CredSSP Authentication error in Remote Desktop Protocol (RDP).

What is CredSSP?

“CredSSP” or “Credential Security Support Provider Protocol” is a security support provider which helps to securely delegate user credentials from a client computer to a windows server by using TLS (Transport Layer Security) as an encrypted pipe.

Why the update?

The update in May is made to correct how CredSSP validates requests during the authentication process. Microsoft has found a credssp error in rdp and found a fix for the vulnerability by mandatory requiring to update both the client and server computer to work properly.

An authentication error has occurred.

The function requested is not supported

Remote

Remote computer: <computer name='>

This could be due to CredSSP encryption oracle remediation.
For more information, see the link

This error is due to the windows update not installed either on the server or on the client computer.

How to fix it?

Windows remote desktop authentication error

To fix the issue, you need to uninstall the update and roll back to an older version. But rolling back to an old version is not a best practice. You can fix this by changing the group policy in the local computer to use the vulnerable setting

Error

1. Go to “Run” (Win Key + R)
2. Type “gpedit.msc” and click “Enter”

3. Go to Computer Configuration -> Administrative Template -> System -> Credentials Delegation -> Encryption Oracle Remediation Prada serial number check online.

An Authentication Error Has Occurred 800706be

4. Double Click on “Encryption Oracle Remediation”, choose “Enable” and change protection level to “Vulnerable” and click “Apply” or “Ok”

You can also fix the issue with the help of a Windows Registry Editor

Authentication Error Has Occurred Remote Desktop Windows Server 2012

1. Open Windows Registry by typing “regedit” in “Run”
2. Navigate to Computer -> HKEY_LOCAL_MACHINE -> SOFTWARE -> Microsoft -> Windows -> CurrentVersion -> Policies -> System -> CredSSP -> Parameters

3. Doubleclick on the Key “Allow Encryption” Change the value to “2”

This method also gives the same output as achieved through the Group Policy Editor. You may use the below table from Microsoft to compare the installed windows update for CredSSP.

Authentication error has occurred remote desktop credssp
Operating systemTSpkg.dll version with CredSSP updateOperating system TSpkg.dll version with CredSSP update CredSSP update
Windows 7 Service Pack 1 / Windows Server 2008 R2 Service Pack 1 6.1.7601.24117 KB4103718 (Monthly Rollup)6.1.7601.24117KB4103718 (Monthly Rollup)
KB4103712 (Security-only update)
Windows Server 20126.2.9200.22432KB4103730 (Monthly Rollup)
KB4103726 (Security-only update)
Windows 8.1 / Windows Sever 2012 R26.3.9600.18999KB4103725 (Monthly Rollup)
KB4103715 (Security-only update)
RS1 – Windows 10 Version 1607 / Windows Server 201610.0.14393.2248KB4103723
RS2 – Windows 10 Version 170310.0.15063.1088KB4103731
RS3 – Windows 10 170910.0.16299.431KB4103727

For any technical assistance to fix CredSSP Authentication Error in RDP

Feel free to contact us

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Authentication Error Has Occurred Remote Desktop Credssp Encryption Oracle Remediation

  • If if find KB missing, can i instal the KB
    KB4103725 (Monthly Rollup)

    KB4103715 (Security-only update to fix the error.

    Does it required a mandatory reboot

    • You can install any of the mentioned update from Microsoft update catalog. You will have to reboot the system after installing the update

  • Can you please let me know which OS version you are using? And please clarify if only this particular option ‘credential delegation’ is missing from your group policy settings. In this case, please run the following CMD command (open the command prompt as administrator) to create the CredSSP parameter by editing the registry:


    REG ADD HKLMSoftwareMicrosoftWindowsCurrentVersionPoliciesSystemCredSSPParameters /v AllowEncryptionOracle /t REG_DWORD /d 2

    Please give a try and let us know how it works for you.

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