RDP Authentication - Cred SSp - Microsoft 866660

Remote Desktop Authentication Error has Occurred - Microsoft 866660 Cred SSP

user cannot connect to RDP previously could.  
An authentication error has occurred.
The Fuctioon Requested is not supportd

This could be due to CredSSP encryption oracle remediation.



If you are unable to connect to your remote server this morning, the issue can be resolved by manually uninstalling update KB4103727 from your physical computer. If you do not have a problem connecting to the hosting environment, it is recommended that you pause Windows Updates or block KB4103727 from being installed.


Windows 10 updated 5/8/2018

If you go into the updates and you do not see the KB4103727, then you will want to follow this link - instructions.  It is a registry edit.  If you prefer not to do this you can email us at helpdesk@netcomplete.net and we can try to assist.



    • Related Articles

    • Remote Work Authenticator Tutorial

      Step 1. Log into remote work program. After logging in, you will arrive at the screen shown below. Step 2. Download and install an authenticator app. There are a few options for this, but I recommend using Microsoft's Authenticator app or Google ...

    • Changing RDP Listening Port

      This is a registry modification and requires extreme precaution.  DO NOT perform this if you are unsure of your skills as you may cause the operating system to quit working. The primary reason for doing this is to change the Default Port so that ...

    • Quickbooks error while doing update Error 15241?

      How to Resolve the Error 15241? There are two different ways suggested by Intuit to resolve this QuickBooks error. To resolve the issue you need to follow the steps listed below:  Windows 10, Windows 8, Windows 7 and Windows Vista Users: End ...

    • CDK w4start error - Domain - Folder redireciton - APPDATA

      Users receive WSSTART4 error.  Seems that when folder redirection is applied for APPDATA, this causes CDK not to work as designed.   Follow these steps After discovering that redirecting AppData has caused unexpected problems with various ...

    • Fix: Windows Error 0x80070718: Not enough quota is available to process this command Windows 10

      Fix: Windows Error 0x80070718: Not enough quota is available to process this command Windows 10  Problem saving /moving files.  Problem is that the Offline Storage Default Limit was reached. This article explains how to fix this.   Offline files is ...