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Remote Desktop, Authentication error: incorrect required function and other solutions

2025-01-16 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > Servers >

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Indows version 10.0.17134, unable to remotely windows server 2008, 2013, 2016 servers after installing the latest patch

The error message is as follows: an authentication error occurred and the required function is not supported possibly due to CredSSP encryption oracle correction.

Microsoft offers a solution:

Https://support.microsoft.com/zh-cn/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018

May 8, 2018

Change the default setting from "vulnerable" to "mitigation" update.

The relevant Microsoft knowledge base number is listed in CVE-2018-0886.

Concrete solution

Windows Professional Edition or above:

Open the Group Policy Editor

After the application is confirmed, you can connect remotely.

Windows Home Edition

Windows 10 Home Edition needs to uninstall this update.

Open the control panel

Select uninstall program

Select to view installed updates

Just select the uninstall you want to uninstall

The method of adding windows10 Home Edition to retrieve Group Policy

It was a bit of a detour at the beginning.

I thought that windows 10 Home Edition could also be configured through group policy, so I worked out the group policy and found that there was no such item in the group policy. finally, I uninstalled the last update patch.

Create a new TXT document and write in it

Copy the code

@ echo off

Pushd "% ~ dp0"

Dir / b C:\ Windows\ servicing\ Packages\ Microsoft-Windows-GroupPolicy-ClientExtensions-Package~3.mum > List.txt

Dir / b C:\ Windows\ servicing\ Packages\ Microsoft-Windows-GroupPolicy-ClientTools-Package~3.mum > > List.txt

For / f% I in ('findstr / I. List.txt 2 ^ > nul') do dism / online / norestart / add-package: "C:\ Windows\ servicing\ Packages\% I"

Pause

Copy the code

Finally, change the suffix to the end of .cmd

Run on both computers, wait for him to finish execution, and then exit with any key.

Restart PC and enter gpedit.msc while running to bring up the Group Policy Editor

Cough

The final solution for windows 10 Home Edition is here, knock on the blackboard again

Modify the registry can be solved perfectly, the specific operation is as follows, modify the steps to carefully look at!

Windows+R Open run input regedit Open Registry

Open the path in turn

one

Computer\ HKEY_LOCAL_MACHINE\ SOFTWARE\ Microsoft\ Windows\ CurrentVersion\ Policies\ System\ CredSSP\ Parameters

It is found that if the last two items in the path are not created in time

Create a new DWORD (32-bit) value in the right column of Parameters

Renamed to: AllowEncryptionOracle

The value is: 2

Test the remote connection again and restart it if it still fails

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