csg-unit

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we determined that the regkey in question was that belonging to the machine rdp'ing OUT, not the server. &nbsp;thank you. &nbsp;Patches have no impact.
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we determined that the regkey in question was that belonging to the machine rdp'ing OUT, not the server.  thank you.  Patches have no impact.

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you definitely kicked me into gear with your comment, thanks Jesse
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you definitely kicked me into gear with your comment, thanks Jesse

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a server 2012 R2 system is giving us this error<br />
<br />
An authentication error has occurred.<br />
The function requested is not supported.<br />
<br />
Remote computer: Computer_Name or IP_Address<br />
This could be due to CredSSP encryption oracle remediation.<br />
For more information, see <a href="https://go.microsoft.com/fwlink/?linkid=866660" rel="ugc">https://go.microsoft.com/fwlink/?linkid=866660</a><br />
<br />
I've tried<br />
<br />
HKEY_LOCAL_MACHINE\SOFTWAR<wbr />E\Microsof<wbr />t\Windows\<wbr />CurrentVer<wbr />sion\Polic<wbr />ies\System<wbr />\CredSSP\P<wbr />arameters\<wbr />AllowEncry<wbr />ptionOracl<wbr />e (= Dword Value 2)<br />
<br />
and gpedit.msc as well as gpo on domain to set the CredSSP to &quot;Vulnerable&quot; <br />
I went in and manually deleted the credssp.adm and en-us\credssp.adml files and recreated them from a 2016 server.<br />
<br />
nothing will work on this target machine to let me in through RDP. &nbsp;any ideas?
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a server 2012 R2 system is giving us this error

An authentication error has occurred.
The function requested is not supported.

Remote computer: Computer_Name or IP_Address
This could be due to CredSSP encryption oracle remediation.
For more information, see https://go.microsoft.com/fwlink/?linkid=866660

I've tried

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\AllowEncryptionOracle (= Dword Value 2)

and gpedit.msc as well as gpo on domain to set the CredSSP to "Vulnerable" 
I went in and manually deleted the credssp.adm and en-us\credssp.adml files and recreated them from a 2016 server.

nothing will work on this target machine to let me in through RDP.  any ideas?

CredSSP everything tried, error persists

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.