Remote Desktop Connection “CredSSP encryption oracle remediation” error

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To work around this issue, follow these steps:

  1. On the client has the CredSSP update installed, run gpedit.msc, and then browse to Computer Configuration > Administrative Templates > System > Credentials Delegation in the navigation pane.
  2. Change the Encryption Oracle Remediation policy to Enabled, and then change Protection Level to Vulnerable.

If you cannot use gpedit.msc, you can make the same change by using the registry, as follows:

  1. Open a Command Prompt window as Administrator.
  2. Run the following command to add a registry value:
    REG ADD HKLM\Software\Microsoft\Windows\CurrentVersion\Policies\System\CredSSP\Parameters\ /v AllowEncryptionOracle /t REG_DWORD /d 2

https://usdkb.sandiego.edu/s/article/Remote-Desktop-Connection-CredSSP-encryption-oracle-remediation-error

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