Problem
Unable to RDP to Machine: CredSSP Encryption Oracle Remediation
Cause
Windows Update: https://support.microsoft.com/en-gb/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018
Solution
The fix is to open your local group policy settings and do this.
Computer Configuration -> Administrative Templates -> System -> Credentials Delegation–Encryption Oracle Remediation
enable and set to ‘vulnerable’.
If Windows Home edition reg key change…
[HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionPoliciesSystemCredSSPParameters] “AllowEncryptionOracle”=dword:00000002
I had to create the CredSSP key, then the Parameters key, then the dword value as none of them existed.
Reference, Links and Imges
https://support.microsoft.com/en-gb/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018