I couldn’t connect to the server remotely this morning. I thought it was down again.
Prompt Message:
An authentication error has occurred.
The function requested is not supported.
Remote computer: < hostname>
Then I searched it and found it was the pot with the updated patch. Just today when I started up, I found my computer was updating.
OK, uninstall that update. Of course not. I’ll change it with this
 
An authentication error occurred on the remote desktop. The requested function is not supported
An authentication error has occurred. The function requested is not supported.
Windows 7 remote login servers used to be normal, but today remote desktop login is a persistent error.
An authentication error occurred in Windows 10 (Win10) requiring an incorrect function, which could be due to a CredSSP encryption Oracle fix.
 
Uninstall and update KB4103718 (Windows 7 Monthly Security quality Summary for X64 based systems), and restart Windows 7 to log in normally.
Or use Microsoft’s official recommendations to modify the local group policy:
Computer configuration & GT; Management template & GT; System & gt; Credential assignment & GT; Encryption Oracle fix selection enabled and selected vulnerable.
Vulnerable – Client applications using CredSSP will expose remote servers to attack by supporting fallback to an insecure version, but services using CredSSP will accept unpatched clients.
english
Group Policy -> Computer Configuration -> Administrative Templates -> System -> Credentials Delegation> Encrypted Oracle Remediation change to Vulnerable
Vulnerableclient Applications that use CredSSP will expose the remote servers to attacks by supporting Fallback to insecure versions, and services that use CredSSP will accept unpatched clients.
 
https://support.microsoft.com/zh-cn/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018
https://support.microsoft.com/en-hk/help/4093492/credssp-updates-for-cve-2018-0886-march-13-2018
Take Win10 as an example:
 

1. Run GPEdit.msc in Win+R

2. Find the following directory

3. Find this

4. Modify the setting to

Then the remote connection to the server will be successful!