{"id":11696,"date":"2018-05-09T11:12:03","date_gmt":"2018-05-09T15:12:03","guid":{"rendered":"https:\/\/southjerseytechies.net\/blog\/?p=11696"},"modified":"2019-05-15T14:50:34","modified_gmt":"2019-05-15T18:50:34","slug":"remote-desktop-credssp-encryption-oracle-remediation","status":"publish","type":"post","link":"https:\/\/southjerseytechies.net\/blog\/remote-desktop-credssp-encryption-oracle-remediation\/","title":{"rendered":"Remote Desktop Error &#8211; An Authentication error has occurred &#8211; CredSSP encryption oracle remediation &#8211; SOLUTION"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-11697\" src=\"https:\/\/southjerseytechies.net\/blog\/wp-content\/uploads\/2018\/05\/rdperror.png\" alt=\"CredSSP encryption oracle remediation\" width=\"471\" height=\"197\" srcset=\"https:\/\/southjerseytechies.net\/blog\/wp-content\/uploads\/2018\/05\/rdperror.png 471w, https:\/\/southjerseytechies.net\/blog\/wp-content\/uploads\/2018\/05\/rdperror-300x125.png 300w\" sizes=\"auto, (max-width: 471px) 100vw, 471px\" \/><\/p>\n<div class=\"ng-scope\">\n<div class=\"ng-isolate-scope\">\n<section class=\"section ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-scope\">\n<div class=\"ng-scope\">\n<div class=\"ng-isolate-scope\">\n<section class=\"section ng-scope\" data-grid=\"col-12\">\n<div class=\"section-body ng-scope\" style=\"box-sizing: inherit; outline: none;\">\n<div class=\"ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-isolate-scope\" data-grid=\"col-12\">\n<div class=\"kb-summary-section section ng-scope\">\n<div class=\"ng-scope\">\n<h2 class=\"c-heading-4 f-lean bold ng-binding\">Error<\/h2>\n<hr class=\"c-divider f-pad-bottom-6x f-pad-top-3x\" \/>\n<\/div>\n<div class=\"section-body ng-scope\" style=\"box-sizing: inherit; outline: none;\">\n<div class=\"ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-isolate-scope\" data-grid=\"col-12\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<p><strong>We recently had an issue with remote desktop connection to a Windows 2012 server from a Windows 10 Pro client computer that was recently updated<\/strong><strong>. <\/strong><\/p>\n<p>An Authentication error has occurred.<br \/>\nThe function requested is not supported.<br \/>\nRemote computer: &lt;servername&gt;<br \/>\nThis could be due to CredSSP encryption oracle remediation<\/p>\n<p><a href=\"https:\/\/support.microsoft.com\/en-us\/help\/4093492\/credssp-updates-for-cve-2018-0886-march-13-2018\">CredSSP updates for CVE-2018-0886<\/a><\/p>\n<div class=\"ng-scope\">\n<div class=\"ng-isolate-scope\">\n<section class=\"section ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-scope\">\n<div class=\"ng-scope\">\n<div class=\"ng-isolate-scope\">\n<section class=\"section ng-scope\" data-grid=\"col-12\">\n<div class=\"section-body ng-scope\" style=\"box-sizing: inherit; outline: none;\">\n<div class=\"ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-isolate-scope\" data-grid=\"col-12\">\n<div class=\"kb-summary-section section ng-scope\">\n<div class=\"ng-scope\">\n<div class=\"ng-scope\">\n<div class=\"ng-isolate-scope\">\n<section class=\"section ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-scope\">\n<div class=\"ng-scope\">\n<div class=\"ng-isolate-scope\">\n<section class=\"section ng-scope\" data-grid=\"col-12\">\n<div class=\"section-body ng-scope\" style=\"box-sizing: inherit; outline: none;\">\n<div class=\"ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-isolate-scope\" data-grid=\"col-12\">\n<div class=\"kb-summary-section section ng-scope\">\n<div class=\"ng-scope\">\n<h2 class=\"c-heading-4 f-lean bold ng-binding\">Solution<\/h2>\n<hr class=\"c-divider f-pad-bottom-6x f-pad-top-3x\" \/>\n<\/div>\n<div class=\"section-body ng-scope\" style=\"box-sizing: inherit; outline: none;\">\n<div class=\"ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-isolate-scope\" data-grid=\"col-12\">\n<div>We had to create a registry key\u00a0HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\CredSSP\\Parameters; both the CredSSP and Parameters keys had to be created, and then create the AllowEncryptionOracle DWORD and give it a value of 2, worked for me on both Windows 7 and Windows 10 Pro computers. A reboot was not needed.<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<div><\/div>\n<div>Registry path: HKLM\\Software\\Microsoft\\Windows\\CurrentVersion\\Policies\\System\\CredSSP\\Parameters<br \/>\nValue: AllowEncryptionOracle<br \/>\nData type: DWORD<\/p>\n<\/div>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-11698\" src=\"https:\/\/southjerseytechies.net\/blog\/wp-content\/uploads\/2018\/05\/rdperror-fix.png\" alt=\"\" width=\"600\" height=\"316\" srcset=\"https:\/\/southjerseytechies.net\/blog\/wp-content\/uploads\/2018\/05\/rdperror-fix.png 400w, https:\/\/southjerseytechies.net\/blog\/wp-content\/uploads\/2018\/05\/rdperror-fix-300x158.png 300w, https:\/\/southjerseytechies.net\/blog\/wp-content\/uploads\/2018\/05\/rdperror-fix-768x404.png 768w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<h2 class=\"c-heading-4 f-lean bold ng-binding\">Have Questions?<\/h2>\n<hr class=\"c-divider f-pad-bottom-6x f-pad-top-3x\" \/>\n<\/div>\n<div class=\"section-body ng-scope\" style=\"box-sizing: inherit; outline: none;\">\n<div class=\"ng-scope\" data-grid=\"col-12\">\n<div class=\"ng-isolate-scope\" data-grid=\"col-12\">\n<div class=\"kb-summary-section section ng-scope\"><\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<\/div>\n<\/section>\n<\/div>\n<\/div>\n<p>Leave us a comment or visit:\u00a0<a href=\"https:\/\/southjerseytechies.net\/\">https:\/\/southjerseytechies.net\/<\/a><\/p>\n<p><a title=\"South Jersey Techies Website\" href=\"http:\/\/southjerseytechies.net\/\">South Jersey Techies, LLC<\/a>\u00a0is a full\u00a0<a title=\"South Jersey Techies Managed Services\" href=\"http:\/\/southjerseytechies.net\/\">Managed Web and Technology Services Company<\/a>\u00a0providing\u00a0IT Services,\u00a0<a title=\"South Jersey Techies: Web Design\" href=\"http:\/\/southjerseytechies.net\/website_design.php\">Website Design Services<\/a>,\u00a0<a title=\"South Jersey Techies: Server Support\" href=\"http:\/\/southjerseytechies.net\/server_install.php\">Server Support<\/a>,\u00a0<a title=\"South Jersey Techies: Network Consulting\" href=\"http:\/\/southjerseytechies.net\/network_consulting.php\">Network Consulting<\/a>,\u00a0<a title=\"South Jersey Techies: Internet Phones\" href=\"http:\/\/southjerseytechies.net\/voip.php\">Internet Phones<\/a>,\u00a0<a title=\"South Jersey Techies: Cloud Solutions Provider\" href=\"http:\/\/southjerseytechies.net\/cloud.php\">Cloud Solutions Provider<\/a>\u00a0and much more.<a title=\"South Jersey Techies: Contact\" href=\"http:\/\/southjerseytechies.net\/contact.php\">\u00a0Contact for More<\/a>\u00a0Information.<\/p>\n<p>To read this article in its entirety\u00a0<a href=\"https:\/\/support.office.com\/en-us\/article\/Outlook-known-issues-in-the-June-2017-security-updates-3f6dbffd-8505-492d-b19f-b3b89369ed9b?ui=en-US&amp;rs=en-US&amp;ad=US&amp;fromAR=1\">click here.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Error We recently had an issue with remote desktop connection to a Windows 2012 server from a Windows 10 Pro client computer that was recently updated. An Authentication error has occurred. The function requested is not supported. Remote computer: &lt;servername&gt; &hellip;<\/p>\n<p><a href=\"https:\/\/southjerseytechies.net\/blog\/remote-desktop-credssp-encryption-oracle-remediation\/\">Continue Reading<span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":11697,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"_links_to":"","_links_to_target":""},"categories":[1664,16],"tags":[2199,2198,2197,2195,2196,2120,578],"class_list":["post-11696","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-microsoft","category-windows","tag-5-9-2018","tag-an-authentication-error-has-occurred","tag-credssp-encryption-oracle-remediation","tag-remote-desktop-client","tag-remote-desktop-server","tag-windows-10-pro","tag-windows-server-2012"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Remote Desktop - CredSSP encryption oracle remediation - FIX<\/title>\n<meta name=\"description\" content=\"An Authentication error has occurred.The function requested is not supported. 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Remote computer: This could be due to CredSSP encryption oracle remediation. 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