{"id":996,"date":"2009-09-18T15:46:20","date_gmt":"2009-09-18T20:46:20","guid":{"rendered":"http:\/\/blogs.devhorizon.com\/reza\/?p=996"},"modified":"2009-09-18T16:26:44","modified_gmt":"2009-09-18T21:26:44","slug":"null-sid-error-event-id-4625-and-application-pool-identity","status":"publish","type":"post","link":"https:\/\/blogs.devhorizon.com\/reza\/2009\/09\/18\/null-sid-error-event-id-4625-and-application-pool-identity\/","title":{"rendered":"NULL SID Error (Event ID: 4625) and Application Pool Identity"},"content":{"rendered":"<p><strong>Issue:<\/strong><\/p>\n<ul>\n<li>Environment:A medium server farm.<\/li>\n<li>Identity:A brand new custom domain account with no special permissions assigned.<\/li>\n<li>Action : Assigning the domain account as the application pool identity when creating a new Web application.<\/li>\n<li>Error Message: Invalid Username or password.<\/li>\n<li>Point of confusion: The same credentials work like a champ when logging to a test box in the domain. I can also add the user to a SharePoint group.<\/li>\n<li>Event Log and ULS Log : Nope,nothing!<\/li>\n<li>Googling (mmmm&#8230;Binging) : No dice!<\/li>\n<\/ul>\n<p><strong>Steps to find the real error:<\/strong><\/p>\n<ul>\n<li>Tried a simpler password by taking out the &#8220;!&#8221; because I was aware of some issues with usual culprits -%,&amp;,$ etc used in app pool password.<\/li>\n<li>Added\u00a0 the user to a test site and tried to login &#8211; Yup&#8230; the user can NOT login to any SharePoint sites ; so there was something wrong! DUH!<\/li>\n<li>Checked the Event log and that was where the following nasty little error rears its ugly head all over.This event was generated when actual logon request of the last step failed not when the central admin &#8220;Create or extend Web Application&#8221; was throwing &#8220;invalid username or password&#8221;. It was generated on the WFE where access was attempted.<\/li>\n<\/ul>\n<div id=\"ig-sh-1\" class=\"syntax_hilite\">\n\n\t\t<div class=\"toolbar\">\n\n\t\t<div class=\"view-different-container\">\n\t\t\t\t\t\t<a href=\"#\" class=\"view-different\">&lt; View <span>plain text<\/span> &gt;<\/a>\n\t\t\t\t\t<\/div>\n\n\t\t<div class=\"language-name\">xml<\/div>\n\n\t\t\n\t\t<br clear=\"both\">\n\n\t<\/div>\n\t\n\t<div class=\"code\">\n\t\t<ol class=\"xml\" style=\"font-family:monospace\"><li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Log Name: Security<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Source: Microsoft-Windows-Security-Auditing<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Date: 18.09.2009 12:34:06<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Event ID: 4625<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Task Category: Logon<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Level: Information<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Keywords: Audit Failure<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">User: N\/A<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Computer: xxx.ch<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Description:<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">An account failed to log on.<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">&nbsp;<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Subject:<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Security ID: NULL SID<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Account Name: -<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Account Domain: -<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">Logon ID: 0x0<\/div><\/li>\n<li style=\"font-weight: normal;vertical-align:top\"><div style=\"font: normal normal 1em\/1.2em monospace;margin:0;padding:0;background:none;vertical-align:top\">....<\/div><\/li>\n<\/ol>\t<\/div>\n\n<\/div>\n\n<p>\n<strong>Resolution (or Workaround!):<\/strong><\/p>\n<ul>\n<li>Deleted the account and recreated it.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Issue: Environment:A medium server farm. Identity:A brand new custom domain account with no special permissions assigned. Action : Assigning the domain account as the application pool identity when creating a new Web application. Error Message: Invalid Username or password. Point of confusion: The same credentials work like a champ when logging to a test box [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[],"class_list":["post-996","post","type-post","status-publish","format-standard","hentry","category-moss-2007"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>NULL SID Error (Event ID: 4625) and Application Pool Identity - Reza Alirezaei&#039;s Blog %<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.devhorizon.com\/reza\/2009\/09\/18\/null-sid-error-event-id-4625-and-application-pool-identity\/\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Reza Alirezaei\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/blogs.devhorizon.com\\\/reza\\\/2009\\\/09\\\/18\\\/null-sid-error-event-id-4625-and-application-pool-identity\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/blogs.devhorizon.com\\\/reza\\\/2009\\\/09\\\/18\\\/null-sid-error-event-id-4625-and-application-pool-identity\\\/\"},\"author\":{\"name\":\"Reza Alirezaei\",\"@id\":\"https:\\\/\\\/blogs.devhorizon.com\\\/reza\\\/#\\\/schema\\\/person\\\/cdbb24d283697a65951cb4a14e474938\"},\"headline\":\"NULL SID Error (Event ID: 4625) and Application Pool Identity\",\"datePublished\":\"2009-09-18T20:46:20+00:00\",\"dateModified\":\"2009-09-18T21:26:44+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/blogs.devhorizon.com\\\/reza\\\/2009\\\/09\\\/18\\\/null-sid-error-event-id-4625-and-application-pool-identity\\\/\"},\"wordCount\":262,\"commentCount\":4,\"articleSection\":[\"MOSS 2007\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/blogs.devhorizon.com\\\/reza\\\/2009\\\/09\\\/18\\\/null-sid-error-event-id-4625-and-application-pool-identity\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/blogs.devhorizon.com\\\/reza\\\/2009\\\/09\\\/18\\\/null-sid-error-event-id-4625-and-application-pool-identity\\\/\",\"url\":\"https:\\\/\\\/blogs.devhorizon.com\\\/reza\\\/2009\\\/09\\\/18\\\/null-sid-error-event-id-4625-and-application-pool-identity\\\/\",\"name\":\"NULL SID Error (Event ID: 4625) and Application Pool Identity - 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