{"id":88804,"date":"2025-04-29T22:33:26","date_gmt":"2025-04-29T17:03:26","guid":{"rendered":"https:\/\/www.seminarsonly.com\/news\/?p=88804"},"modified":"2025-04-29T22:57:18","modified_gmt":"2025-04-29T17:27:18","slug":"error-code-caa20002-how-to-fix","status":"publish","type":"post","link":"https:\/\/seminarsonly.com\/news\/error-code-caa20002-how-to-fix\/","title":{"rendered":"Error Code CAA20002 | How to Fix"},"content":{"rendered":"<h3 data-start=\"0\" data-end=\"254\"><span style=\"color: #008000;\"><em>Error Code <strong data-start=\"11\" data-end=\"23\">CAA20002<\/strong> is commonly associated with <strong data-start=\"52\" data-end=\"71\">Microsoft Teams<\/strong>, and typically indicates a <strong data-start=\"99\" data-end=\"134\">sign-in or authentication issue<\/strong>, often caused by a problem with the <strong data-start=\"171\" data-end=\"193\">Office credentials<\/strong>, <strong data-start=\"195\" data-end=\"223\">Windows account settings<\/strong>, or <strong data-start=\"228\" data-end=\"253\">network configuration<\/strong>.<\/em><\/span><\/h3>\n<h2 data-start=\"256\" data-end=\"304\"><span style=\"color: #800000;\">Here\u2019s a step-by-step guide to fix <strong data-start=\"291\" data-end=\"303\">CAA20002<\/strong>:<\/span><\/h2>\n<hr class=\"\" data-start=\"306\" data-end=\"309\" \/>\n<h3 class=\"\" data-start=\"311\" data-end=\"341\"><span style=\"color: #000080;\">\u2705 1. <strong data-start=\"320\" data-end=\"341\">Clear Teams Cache<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"342\" data-end=\"379\">This fixes many local sign-in errors.<\/p>\n<ul data-start=\"381\" data-end=\"554\">\n<li class=\"\" data-start=\"381\" data-end=\"416\">\n<p class=\"\" data-start=\"383\" data-end=\"416\">Close Microsoft Teams completely.<\/p>\n<\/li>\n<li class=\"\" data-start=\"417\" data-end=\"487\">\n<p class=\"\" data-start=\"419\" data-end=\"447\">Press <code data-start=\"425\" data-end=\"438\">Windows + R<\/code>, type:<\/p>\n<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary\">\n<div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none rounded-t-[5px]\">shell<\/div>\n<div class=\"sticky top-9\"><\/div>\n<div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"whitespace-pre!\"><span class=\"hljs-meta prompt_\">%<\/span><span class=\"language-bash\">appdata%\\Microsoft\\Teams<\/span><br \/>\n<\/code><\/div>\n<\/div>\n<\/li>\n<li class=\"\" data-start=\"488\" data-end=\"537\">\n<p class=\"\" data-start=\"490\" data-end=\"537\">Delete all files and folders in that directory.<\/p>\n<\/li>\n<li class=\"\" data-start=\"538\" data-end=\"554\">\n<p class=\"\" data-start=\"540\" data-end=\"554\">Restart Teams.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"556\" data-end=\"559\" \/>\n<h3 class=\"\" data-start=\"561\" data-end=\"607\"><span style=\"color: #000080;\">\u2705 2. <strong data-start=\"570\" data-end=\"607\">Sign Out and Re-sign In to Office<\/strong><\/span><\/h3>\n<ul data-start=\"608\" data-end=\"742\">\n<li class=\"\" data-start=\"608\" data-end=\"653\">\n<p class=\"\" data-start=\"610\" data-end=\"653\">Open any Office app (like Word or Outlook).<\/p>\n<\/li>\n<li class=\"\" data-start=\"654\" data-end=\"681\">\n<p class=\"\" data-start=\"656\" data-end=\"681\">Sign out of your account.<\/p>\n<\/li>\n<li class=\"\" data-start=\"682\" data-end=\"742\">\n<p class=\"\" data-start=\"684\" data-end=\"742\">Sign back in using the same credentials you use for Teams.<\/p>\n<\/li>\n<\/ul>\n<h3>Also Read : <a href=\"https:\/\/www.seminarsonly.com\/news\/www-claveunica-gob-cl-activar-como-puedo-obtener-mi-claveunica\/\">www.claveunica.gob.cl Activar<\/a><\/h3>\n<hr class=\"\" data-start=\"744\" data-end=\"747\" \/>\n<h3 class=\"\" data-start=\"749\" data-end=\"795\"><span style=\"color: #000080;\">\u2705 3. <strong data-start=\"758\" data-end=\"795\">Check Internet and Proxy Settings<\/strong><\/span><\/h3>\n<ul data-start=\"796\" data-end=\"980\">\n<li class=\"\" data-start=\"796\" data-end=\"829\">\n<p class=\"\" data-start=\"798\" data-end=\"829\">Ensure your internet is stable.<\/p>\n<\/li>\n<li class=\"\" data-start=\"830\" data-end=\"893\">\n<p class=\"\" data-start=\"832\" data-end=\"893\">If you&#8217;re using a VPN or proxy, try disabling it temporarily.<\/p>\n<\/li>\n<li class=\"\" data-start=\"894\" data-end=\"980\">\n<p class=\"\" data-start=\"896\" data-end=\"980\">Go to <strong data-start=\"902\" data-end=\"943\">Settings &gt; Network &amp; Internet &gt; Proxy<\/strong> and turn off any manual proxy setup.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"982\" data-end=\"985\" \/>\n<h3 class=\"\" data-start=\"987\" data-end=\"1033\"><span style=\"color: #000080;\">\u2705 4. <strong data-start=\"996\" data-end=\"1033\">Reset Windows Account Credentials<\/strong><\/span><\/h3>\n<ul data-start=\"1034\" data-end=\"1266\">\n<li class=\"\" data-start=\"1034\" data-end=\"1129\">\n<p class=\"\" data-start=\"1036\" data-end=\"1129\">Open <strong data-start=\"1041\" data-end=\"1072\">Windows Credentials Manager<\/strong>:<br data-start=\"1073\" data-end=\"1076\" \/>Control Panel &gt; User Accounts &gt; Credential Manager.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1130\" data-end=\"1247\">\n<p class=\"\" data-start=\"1132\" data-end=\"1247\">Under <strong data-start=\"1138\" data-end=\"1161\">Windows Credentials<\/strong> and <strong data-start=\"1166\" data-end=\"1189\">Generic Credentials<\/strong>, remove any entries related to Microsoft Teams or Office.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1248\" data-end=\"1266\">\n<p class=\"\" data-start=\"1250\" data-end=\"1266\">Restart your PC.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"1268\" data-end=\"1271\" \/>\n<h3 class=\"\" data-start=\"1273\" data-end=\"1310\"><span style=\"color: #000080;\">\u2705 5. <strong data-start=\"1282\" data-end=\"1310\">Update Teams and Windows<\/strong><\/span><\/h3>\n<ul data-start=\"1311\" data-end=\"1441\">\n<li class=\"\" data-start=\"1311\" data-end=\"1350\">\n<p class=\"\" data-start=\"1313\" data-end=\"1350\">Ensure Microsoft Teams is up to date.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1351\" data-end=\"1441\">\n<p class=\"\" data-start=\"1353\" data-end=\"1441\">Go to <strong data-start=\"1359\" data-end=\"1408\">Settings &gt; Update &amp; Security &gt; Windows Update<\/strong> and install any pending updates.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"1443\" data-end=\"1446\" \/>\n<h3 class=\"\" data-start=\"1448\" data-end=\"1476\"><span style=\"color: #000080;\">\u2705 6. <strong data-start=\"1457\" data-end=\"1476\">Reinstall Teams<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"1477\" data-end=\"1503\">If none of the above work:<\/p>\n<ul data-start=\"1505\" data-end=\"1751\">\n<li class=\"\" data-start=\"1505\" data-end=\"1548\">\n<p class=\"\" data-start=\"1507\" data-end=\"1548\">Uninstall Teams from <strong data-start=\"1528\" data-end=\"1547\">Apps &amp; Features<\/strong>.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1549\" data-end=\"1604\">\n<p class=\"\" data-start=\"1551\" data-end=\"1604\">Delete cache again using <code data-start=\"1576\" data-end=\"1603\">%appdata%\\Microsoft\\Teams<\/code>.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1605\" data-end=\"1751\">\n<p class=\"\" data-start=\"1607\" data-end=\"1751\">Reboot and reinstall the latest version of Teams from <a class=\"\" href=\"https:\/\/www.microsoft.com\/en-us\/microsoft-teams\/download-app\" target=\"_new\" rel=\"noopener\" data-start=\"1661\" data-end=\"1750\">Microsoft\u2019s official site<\/a>.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"1753\" data-end=\"1756\" \/>\n<h3 class=\"\" data-start=\"1758\" data-end=\"1841\"><span style=\"color: #000080;\">\u2705 7. <strong data-start=\"1767\" data-end=\"1841\">Check for Azure AD or Conditional Access Issues (Enterprise\/Org Users)<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"1842\" data-end=\"1877\">If you&#8217;re on a work\/school account:<\/p>\n<ul data-start=\"1878\" data-end=\"2041\">\n<li class=\"\" data-start=\"1878\" data-end=\"1954\">\n<p class=\"\" data-start=\"1880\" data-end=\"1954\">Your organization may have Conditional Access policies or Azure AD issues.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1955\" data-end=\"2041\">\n<p class=\"\" data-start=\"1957\" data-end=\"2041\">Contact your IT administrator to verify if your device or location is being blocked.<\/p>\n<\/li>\n<\/ul>\n<h2 class=\"\" data-start=\"133\" data-end=\"187\"><span style=\"color: #800000;\">Advanced Troubleshooting for Error Code CAA20002<\/span><\/h2>\n<h3 class=\"\" data-start=\"189\" data-end=\"250\"><span style=\"color: #000080;\">\ud83e\udde0 8. <strong data-start=\"199\" data-end=\"250\">Check for Account Conflicts (Multiple Accounts)<\/strong><\/span><\/h3>\n<ul data-start=\"251\" data-end=\"506\">\n<li class=\"\" data-start=\"251\" data-end=\"385\">\n<p class=\"\" data-start=\"253\" data-end=\"385\">If you&#8217;ve signed into Teams (or other Office apps) with <strong data-start=\"309\" data-end=\"340\">multiple Microsoft accounts<\/strong>, that can cause token or identity confusion.<\/p>\n<\/li>\n<li class=\"\" data-start=\"386\" data-end=\"506\">\n<p class=\"\" data-start=\"388\" data-end=\"431\">Open any Office app (e.g., Outlook), go to:<\/p>\n<ul data-start=\"434\" data-end=\"506\">\n<li class=\"\" data-start=\"434\" data-end=\"454\">\n<p class=\"\" data-start=\"436\" data-end=\"454\"><strong data-start=\"436\" data-end=\"454\">File &gt; Account<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"457\" data-end=\"506\">\n<p class=\"\" data-start=\"459\" data-end=\"506\">Remove any extra accounts not currently in use.<\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"508\" data-end=\"534\">Also, in Windows Settings:<\/p>\n<ul data-start=\"535\" data-end=\"635\">\n<li class=\"\" data-start=\"535\" data-end=\"590\">\n<p class=\"\" data-start=\"537\" data-end=\"590\">Go to <strong data-start=\"543\" data-end=\"590\">Settings &gt; Accounts &gt; Access work or school<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"591\" data-end=\"635\">\n<p class=\"\" data-start=\"593\" data-end=\"635\">Remove any duplicate or outdated accounts.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"637\" data-end=\"640\" \/>\n<h3 class=\"\" data-start=\"642\" data-end=\"708\"><span style=\"color: #000080;\">\ud83d\udd27 9. <strong data-start=\"652\" data-end=\"708\">Reset Teams Using PowerShell (for persistent issues)<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"710\" data-end=\"768\">Use this command to completely remove Teams configuration:<\/p>\n<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary\">\n<div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none rounded-t-[5px]\">powershell<\/div>\n<div class=\"sticky top-9\">\n<div class=\"absolute end-0 bottom-0 flex h-9 items-center pe-2\">\n<div class=\"bg-token-sidebar-surface-primary text-token-text-secondary dark:bg-token-main-surface-secondary flex items-center rounded-sm px-2 font-sans text-xs\"><\/div>\n<\/div>\n<\/div>\n<div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"whitespace-pre! language-powershell\">Get-AppxPackage MicrosoftTeams | Remove-AppxPackage<br \/>\nRemove-Item -Path \"$env:APPDATA\\Microsoft\\Teams\" -Recurse -Force<br \/>\nRemove-Item -Path \"$env:LOCALAPPDATA\\Microsoft\\Teams\" -Recurse -Force<br \/>\n<\/code><\/div>\n<\/div>\n<p class=\"\" data-start=\"976\" data-end=\"1013\">Then re-download and reinstall Teams.<\/p>\n<hr class=\"\" data-start=\"1015\" data-end=\"1018\" \/>\n<h3 class=\"\" data-start=\"1020\" data-end=\"1074\"><span style=\"color: #000080;\">\ud83d\udd10 10. <strong data-start=\"1031\" data-end=\"1074\">Check Device Registration with Azure AD<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"1075\" data-end=\"1207\">If you&#8217;re part of a work\/school organization, your PC may be <strong data-start=\"1136\" data-end=\"1174\">blocked or not registered properly<\/strong> in Azure Active Directory (AAD):<\/p>\n<ul data-start=\"1209\" data-end=\"1243\">\n<li class=\"\" data-start=\"1209\" data-end=\"1243\">\n<p class=\"\" data-start=\"1211\" data-end=\"1243\">Open <strong data-start=\"1216\" data-end=\"1234\">Command Prompt<\/strong> and run:<\/p>\n<\/li>\n<\/ul>\n<div class=\"contain-inline-size rounded-md border-[0.5px] border-token-border-medium relative bg-token-sidebar-surface-primary\">\n<div class=\"flex items-center text-token-text-secondary px-4 py-2 text-xs font-sans justify-between h-9 bg-token-sidebar-surface-primary dark:bg-token-main-surface-secondary select-none rounded-t-[5px]\">cmd<\/div>\n<div class=\"sticky top-9\">\n<div class=\"absolute end-0 bottom-0 flex h-9 items-center pe-2\">\n<div class=\"bg-token-sidebar-surface-primary text-token-text-secondary dark:bg-token-main-surface-secondary flex items-center rounded-sm px-2 font-sans text-xs\"><\/div>\n<\/div>\n<\/div>\n<div class=\"overflow-y-auto p-4\" dir=\"ltr\"><code class=\"whitespace-pre! language-cmd\">dsregcmd \/status<br \/>\n<\/code><\/div>\n<\/div>\n<p class=\"\" data-start=\"1274\" data-end=\"1291\">Check the output:<\/p>\n<ul data-start=\"1292\" data-end=\"1428\">\n<li class=\"\" data-start=\"1292\" data-end=\"1345\">\n<p class=\"\" data-start=\"1294\" data-end=\"1345\"><code data-start=\"1294\" data-end=\"1309\">AzureADJoined<\/code> or <code data-start=\"1313\" data-end=\"1327\">DomainJoined<\/code> should be <strong data-start=\"1338\" data-end=\"1345\">YES<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"1346\" data-end=\"1428\">\n<p class=\"\" data-start=\"1348\" data-end=\"1428\">If it&#8217;s <strong data-start=\"1356\" data-end=\"1362\">NO<\/strong>, your device might not be properly enrolled, causing auth issues.<\/p>\n<\/li>\n<\/ul>\n<p class=\"\" data-start=\"1430\" data-end=\"1519\">Ask IT or your admin to re-register the device or use <code data-start=\"1484\" data-end=\"1500\">dsregcmd \/join<\/code> with admin rights.<\/p>\n<hr class=\"\" data-start=\"1521\" data-end=\"1524\" \/>\n<h3 class=\"\" data-start=\"1526\" data-end=\"1596\"><span style=\"color: #000080;\">\ud83d\udd04 11. <strong data-start=\"1537\" data-end=\"1596\">Disable Modern Authentication Temporarily (Admin-Level)<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"1597\" data-end=\"1637\">If you&#8217;re an admin or managing a tenant:<\/p>\n<ul data-start=\"1639\" data-end=\"1887\">\n<li class=\"\" data-start=\"1639\" data-end=\"1697\">\n<p class=\"\" data-start=\"1641\" data-end=\"1697\">Sometimes legacy systems misbehave with <strong data-start=\"1681\" data-end=\"1696\">Modern Auth<\/strong>.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1698\" data-end=\"1805\">\n<p class=\"\" data-start=\"1700\" data-end=\"1805\">You can temporarily disable Modern Auth for testing via <strong data-start=\"1756\" data-end=\"1786\">Microsoft 365 Admin Center<\/strong> or <strong data-start=\"1790\" data-end=\"1804\">PowerShell<\/strong>.<\/p>\n<\/li>\n<li class=\"\" data-start=\"1806\" data-end=\"1887\">\n<p class=\"\" data-start=\"1808\" data-end=\"1887\"><strong data-start=\"1808\" data-end=\"1817\">Note:<\/strong> This is <strong data-start=\"1826\" data-end=\"1855\">not recommended long-term<\/strong>, only for diagnosing the issue.<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"1889\" data-end=\"1892\" \/>\n<h3 class=\"\" data-start=\"1894\" data-end=\"1958\"><span style=\"color: #000080;\">\ud83e\uddf0 12. <strong data-start=\"1905\" data-end=\"1958\">Review Sign-in Logs in Microsoft Entra (Azure AD)<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"1959\" data-end=\"1987\">For enterprise environments:<\/p>\n<ul data-start=\"1988\" data-end=\"2215\">\n<li class=\"\" data-start=\"1988\" data-end=\"2054\">\n<p class=\"\" data-start=\"1990\" data-end=\"2054\">Go to <a class=\"\" href=\"https:\/\/entra.microsoft.com\" target=\"_new\" rel=\"noopener\" data-start=\"1996\" data-end=\"2054\">https:\/\/entra.microsoft.com<\/a><\/p>\n<\/li>\n<li class=\"\" data-start=\"2055\" data-end=\"2133\">\n<p class=\"\" data-start=\"2057\" data-end=\"2133\">Check <strong data-start=\"2063\" data-end=\"2079\">Sign-in Logs<\/strong> for the affected user under <strong data-start=\"2108\" data-end=\"2133\">Monitoring &gt; Sign-ins<\/strong><\/p>\n<\/li>\n<li class=\"\" data-start=\"2134\" data-end=\"2215\">\n<p class=\"\" data-start=\"2136\" data-end=\"2215\">Look for the actual reason for failure (often more detailed than just CAA20002)<\/p>\n<\/li>\n<\/ul>\n<hr class=\"\" data-start=\"2217\" data-end=\"2220\" \/>\n<h3 class=\"\" data-start=\"2222\" data-end=\"2275\"><span style=\"color: #000080;\">\ud83d\udce1 13. <strong data-start=\"2233\" data-end=\"2275\">Inspect Firewall or Antivirus Blocking<\/strong><\/span><\/h3>\n<p class=\"\" data-start=\"2276\" data-end=\"2401\">Some endpoint protection software (e.g., McAfee, Kaspersky, Palo Alto agents) may block Teams authentication or token access.<\/p>\n<ul data-start=\"2403\" data-end=\"2584\">\n<li class=\"\" data-start=\"2403\" data-end=\"2444\">\n<p class=\"\" data-start=\"2405\" data-end=\"2444\">Temporarily disable firewall\/AV to test<\/p>\n<\/li>\n<li class=\"\" data-start=\"2445\" data-end=\"2584\">\n<p class=\"\" data-start=\"2447\" data-end=\"2478\">Whitelist these URLs if needed:<\/p>\n<ul data-start=\"2481\" data-end=\"2584\">\n<li class=\"\" data-start=\"2481\" data-end=\"2506\">\n<p class=\"\" data-start=\"2483\" data-end=\"2506\"><code data-start=\"2483\" data-end=\"2506\">*.teams.microsoft.com<\/code><\/p>\n<\/li>\n<li class=\"\" data-start=\"2509\" data-end=\"2528\">\n<p class=\"\" data-start=\"2511\" data-end=\"2528\"><code data-start=\"2511\" data-end=\"2528\">*.office365.com<\/code><\/p>\n<\/li>\n<li class=\"\" data-start=\"2531\" data-end=\"2560\">\n<p class=\"\" data-start=\"2533\" data-end=\"2560\"><code data-start=\"2533\" data-end=\"2560\">login.microsoftonline.com<\/code><\/p>\n<\/li>\n<li class=\"\" data-start=\"2563\" data-end=\"2584\">\n<p class=\"\" data-start=\"2565\" data-end=\"2584\"><code data-start=\"2565\" data-end=\"2584\">aadcdn.msauth.net<\/code><\/p>\n<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Error Code CAA20002 is commonly associated with Microsoft Teams, and typically indicates a sign-in or authentication issue, often caused by a problem with the Office credentials, Windows account settings, or&hellip;<\/p>\n","protected":false},"author":1,"featured_media":87562,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6048],"tags":[],"class_list":["post-88804","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-error-fix"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v27.2 (Yoast SEO v27.2) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Error Code CAA20002 | How to Fix - Seminarsonly.com<\/title>\n<meta name=\"description\" content=\"Error Code CAA20002 is commonly associated with Microsoft Teams, and typically indicates a sign-in or authentication issue, often caused by a problem with the Office credentials, Windows account settings, or network configuration.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link 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