Cannot connect remote desktop to server due to "CredSSP encryption" issue after updates (Windows 10 Home)
- regedit →
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System\
- Create a key named
CredSSP
- In
CredSSP
, create a key namedParameters
- In
Parameters
, create aDWORD (32) Value
namedAllowEncryptionOracle
- Double click
AllowEncryptionOracle
and change its value to00000002
You don't have to reboot.
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Karl Cassar
Updated on September 18, 2022Comments
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Karl Cassar over 1 year
Recently, I made an update to my laptop and it stopped connecting to a server via RDP, showing the below message.
[Window Title] Remote Desktop Connection [Content] An authentication error has occurred. The function requested is not supported Remote computer: XXX.XXX.XXX.XXX This could be due to CredSSP encryption oracle remediation. For more information, see https://go.microsoft.com/fwlink/?linkid=866660 [OK]
After some internet searches, I came across this article - https://www.virtualizationhowto.com/2018/05/windows-10-rdp-credssp-encryption-oracle-remediation-error-fix/. This explains that the issue is because of latest updates not allowing access to unpatched servers, and explaining how to change your settings to allow connecting even to unpatched servers. In an ideal world, the server would be patched and this would not be an issue. However, that might not happen for a while and I need to find a workaround.
The first issue seems that Windows 10 Home does not have the
Group Policy Editor
installed. I managed to find an article showing how to get thegpedit.msc
back.However, then I couldn't find the entry
Computer Configuration >> Administrative Templates >> System >> Credentials Delegation >> Encryption Oracle Remediation.
explained in the article about the update. Again, I am assuming this is because I am using Windows Home 10.Any ideas how to fix this issue on Windows 10 Home?
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Run5k about 6 years
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Karl Cassar about 6 years@Run5k I actually referenced an article in my question to show that I am aware similar issues exist. The difference in my question is that I am using Windows 10 Home, and the fix mentioned does not seem to apply.
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Run5k about 6 yearsUnderstood, but there are actually several fixes listed within that question. The one with that adds registry keys seems like it should work on Windows 10 Home, also.
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