{"id":731,"date":"2021-04-14T10:38:33","date_gmt":"2021-04-14T10:38:33","guid":{"rendered":"https:\/\/www.arysontechnologies.com\/how-to\/?p=731"},"modified":"2026-07-08T13:50:55","modified_gmt":"2026-07-08T13:50:55","slug":"fix-outlook-connectivity-with-office-365-and-exchange","status":"publish","type":"post","link":"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-connectivity-with-office-365-and-exchange\/","title":{"rendered":"How to Troubleshoot Outlook Connectivity with Office 365"},"content":{"rendered":"<p>If you are using Microsoft Outlook and facing connectivity issues, this blog will help you troubleshoot Outlook connectivity and share data with Office 365. It explains multiple techniques to fix the problem. So, read the article for complete information.<\/p>\n<p>Microsoft Outlook is an email client that stores the mailbox information to Office 365. So, Outlook needs a proper connection with the server to share information. But sometimes, you face connectivity issues between Microsoft Outlook and Office 365.<\/p>\n<p>Now, you can fix the problem by various methods. All these methods are simple and effective. But first, you need to know the cause of the connectivity issue. After that, you can troubleshoot the error.<\/p>\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_83 counter-hierarchy ez-toc-counter ez-toc-light-blue ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title ez-toc-toggle\" style=\"cursor:pointer\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 eztoc-toggle-hide-by-default' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-connectivity-with-office-365-and-exchange\/#Reasons_for_Connectivity_issue_between_Outlook_and_Office_365\" >Reasons for Connectivity issue between Outlook and Office 365<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-connectivity-with-office-365-and-exchange\/#Try_Methods_to_fix_the_Outlook_Connectivity_issue_in_Office_365_Exchange_Online_are\" >Try Methods to fix the Outlook Connectivity issue in Office 365 &amp; Exchange Online are:<\/a><ul class='ez-toc-list-level-4' ><li class='ez-toc-heading-level-4'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-connectivity-with-office-365-and-exchange\/#Fix_Office_365_Outlook_Connectivity_Issues_with_Professional_Methods\" >Fix Office 365 Outlook Connectivity Issues with Professional Methods<\/a><\/li><\/ul><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.arysontechnologies.com\/how-to\/fix-outlook-connectivity-with-office-365-and-exchange\/#Conclusion\" >Conclusion<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"Reasons_for_Connectivity_issue_between_Outlook_and_Office_365\"><\/span>Reasons for Connectivity issue between Outlook and Office 365<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The connectivity problem mainly occurs due to misconfigured email setup. So, you can troubleshoot Outlook connectivity by assigning proper settings. But, there are also other reasons for this issue.<\/p>\n<ul>\n<li>The connectivity problem generally arises when the Outlook settings are set to unsuitable options. If the configuration settings are incorrect, Outlook will not be able to establish a connection.<\/li>\n<li>The Outlook shows error messages due to improper installation. It leads to the malfunctioning of the software. Some files get missed during the incomplete installation.<\/li>\n<li>Damaged Outlook data files are also one of the reasons for Office 365 connection issues. You can fix the problem through the inbuilt inbox repair tool, or you can use third-party software.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"Try_Methods_to_fix_the_Outlook_Connectivity_issue_in_Office_365_Exchange_Online_are\"><\/span>Try Methods to fix the Outlook Connectivity issue in Office 365 &amp; Exchange Online are:<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p><strong>1.Disable the Work Offline Mode<\/strong><\/p>\n<p>The first thing you should do is check whether the Work Offline mode is disabled or not. Most of the time, you activate the offline mode to work effectively without the internet. This feature helps you to perform all the functions except those which require connection to the server. So, disable the option. Otherwise, Outlook cannot connect to the server.<\/p>\n<ul>\n<li>Launch the Microsoft Outlook and click on the <strong>Send\/Receive<\/strong> tab.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-732\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-1.png\" alt=\"\" width=\"478\" height=\"428\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-1.png 478w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-1-300x269.png 300w\" sizes=\"auto, (max-width: 478px) 100vw, 478px\" \/><\/li>\n<li>If the <strong>Work Offline<\/strong> mode is already activated, deactivate it by clicking on it.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-733\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-2.png\" alt=\"\" width=\"476\" height=\"292\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-2.png 476w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-2-300x184.png 300w\" sizes=\"auto, (max-width: 476px) 100vw, 476px\" \/><\/li>\n<\/ul>\n<p><strong>2.Repair the Microsoft Office Installation<\/strong><\/p>\n<p>In case some files of Microsoft Office 365 get damaged, and Outlook disconnected from the server. So, you need to repair the Office installation to fix the issue. This method will rebuild the files and restore the default settings. So, follow the steps to troubleshoot Outlook connectivity.<\/p>\n<ul>\n<li>Go to Start and select the control panel.<\/li>\n<li>Choose <strong>Uninstall a Program<\/strong> and locate the Office 365 application.<\/li>\n<li>Right-click on the program and select the <strong>Change<\/strong> option.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-734\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-3.png\" alt=\"\" width=\"480\" height=\"339\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-3.png 480w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-3-300x212.png 300w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/li>\n<li>After that, choose the <strong>Quick Repair<\/strong> option and click on the <strong>Repair<\/strong> button.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-735\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-4.png\" alt=\"\" width=\"482\" height=\"335\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-4.png 482w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-4-300x209.png 300w\" sizes=\"auto, (max-width: 482px) 100vw, 482px\" \/><\/li>\n<li>It will start troubleshooting office 365. Once the repair has been completed, install the tool again.<\/li>\n<\/ul>\n<p><strong>3.Troubleshoot Exchange Server Connection<\/strong><\/p>\n<p>Microsoft Outlook has an inbuilt feature to detect the cause of Outlook connectivity issues. It is the fastest method to figure out the reason. After that, you can fix the error. You can use this feature to troubleshoot Outlook connectivity Exchange 2016. Follow the steps to start troubleshooting.<\/p>\n<ul>\n<li>Open Microsoft Outlook and select the <strong>File<\/strong> option from the menu bar.<\/li>\n<li>Choose the <strong>Options<\/strong> tab from the list.<\/li>\n<li>It will open the <strong>Outlook options<\/strong> wizard. Select the <strong>Advanced<\/strong> tab from the left pane. <img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-736\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-5.png\" alt=\"\" width=\"479\" height=\"387\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-5.png 479w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-5-300x242.png 300w\" sizes=\"auto, (max-width: 479px) 100vw, 479px\" \/><\/li>\n<li>After that, tick the <strong>Enable Troubleshooting logging<\/strong> option in the others section.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-737\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-6.png\" alt=\"\" width=\"478\" height=\"390\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-6.png 478w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-6-300x245.png 300w\" sizes=\"auto, (max-width: 478px) 100vw, 478px\" \/><\/li>\n<li>Click on the OK button and restart the system.<\/li>\n<\/ul>\n<p>The above steps Troubleshoot the Outlook Connectivity problem. It finds the root cause, but it can not fix the issue in every case.<\/p>\n<p><strong>4.Restore Outlook Data Files<\/strong><\/p>\n<p>The connectivity issue may also arise when the Outlook data files get damaged or corrupted. You have to repair them to connect the email client to the server. Follow the steps below to rebuild the PST files.<\/p>\n<ul>\n<li>Open <strong>File Explorer<\/strong> and click on the C:\\.<\/li>\n<li>Now, select <strong>Program Files(x86)<\/strong> and type <strong>SCANPST<\/strong> in the search box.<\/li>\n<li>Double-click the <strong>scanpst.exe<\/strong> to run the application.<img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-738\" src=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-7.png\" alt=\"\" width=\"480\" height=\"400\" srcset=\"https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-7.png 480w, https:\/\/www.arysontechnologies.com\/how-to\/wp-content\/uploads\/2021\/04\/Outlook-Connectivity-7-300x250.png 300w\" sizes=\"auto, (max-width: 480px) 100vw, 480px\" \/><\/li>\n<li>Browse the Outlook data file and press the start button.<\/li>\n<\/ul>\n<p>The Outlook repair tool (<a href=\"https:\/\/www.arysontechnologies.com\/updates\/download-scanpst-exe-tool\/\" target=\"_blank\" rel=\"noopener\">Scanpst.exe<\/a>) scans the PST files and repairs the damaged data. If you see any issue in the data file, press the repair button. After that, restart Microsoft Outlook.<\/p>\n<h4><span class=\"ez-toc-section\" id=\"Fix_Office_365_Outlook_Connectivity_Issues_with_Professional_Methods\"><\/span>Fix Office 365 Outlook Connectivity Issues with Professional Methods<span class=\"ez-toc-section-end\"><\/span><\/h4>\n<p>Suppose you are using Outlook to access Office 365 account or other Exchange Server account online and encounter an Outlook connection issue with Office 365. In that case, you need to use <a href=\"https:\/\/www.arysontechnologies.com\/office365-backup\/\" target=\"_blank\" rel=\"noopener\">Aryson Office 365 Backup Tool<\/a>. This software does not access Office 365 mailbox in Outlook directly. The software will help you to backup your Office 365 account data on the local machine as a PST file. After that, you can <a href=\"https:\/\/www.arysontechnologies.com\/add-pst-to-ms-outlook.html\" target=\"_blank\" rel=\"noopener\">import PST into MS Outlook<\/a>.<\/p>\n<h2><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span><strong>Conclusion<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>I hope you will get the solution to \u2018How to fix connectivity issues with Outlook?\u2019 from the above information. The article described the reasons for connectivity issues and how you can troubleshoot Outlook connectivity issues. Also, the best way to protect your data is through taking backup at a regular interval. Aryson Office 365 Backup and Restore software is an advanced and full-featured tool for Office 365 migration.<\/p>\n\n\n<div class=\"kk-star-ratings kksr-auto kksr-align-left kksr-valign-bottom\"\n    data-payload='{&quot;align&quot;:&quot;left&quot;,&quot;id&quot;:&quot;731&quot;,&quot;slug&quot;:&quot;default&quot;,&quot;valign&quot;:&quot;bottom&quot;,&quot;ignore&quot;:&quot;&quot;,&quot;reference&quot;:&quot;auto&quot;,&quot;class&quot;:&quot;&quot;,&quot;count&quot;:&quot;1&quot;,&quot;legendonly&quot;:&quot;&quot;,&quot;readonly&quot;:&quot;&quot;,&quot;score&quot;:&quot;3&quot;,&quot;starsonly&quot;:&quot;&quot;,&quot;best&quot;:&quot;5&quot;,&quot;gap&quot;:&quot;5&quot;,&quot;greet&quot;:&quot;Rate this post&quot;,&quot;legend&quot;:&quot;3\\\/5 - (1 vote)&quot;,&quot;size&quot;:&quot;24&quot;,&quot;title&quot;:&quot;How to Troubleshoot Outlook Connectivity with Office 365&quot;,&quot;width&quot;:&quot;84.5&quot;,&quot;_legend&quot;:&quot;{score}\\\/{best} - ({count} {votes})&quot;,&quot;font_factor&quot;:&quot;1.25&quot;}'>\n            \n<div class=\"kksr-stars\">\n    \n<div class=\"kksr-stars-inactive\">\n            <div class=\"kksr-star\" data-star=\"1\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"2\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"3\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"4\" style=\"padding-right: 5px\">\n            \n\n<div class=\"kksr-icon\" style=\"width: 24px; height: 24px;\"><\/div>\n        <\/div>\n            <div class=\"kksr-star\" data-star=\"5\" style=\"padding-right: 5px\">\n            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24px;\"><\/div>\n        <\/div>\n    <\/div>\n<\/div>\n                \n\n<div class=\"kksr-legend\" style=\"font-size: 19.2px;\">\n            3\/5 - (1 vote)    <\/div>\n    <\/div>\n","protected":false},"excerpt":{"rendered":"<p>If you face Outlook connectivity with Office 365, use the given methods to fix the Outlook Connection problem in Office 365 and Exchange.<\/p>\n","protected":false},"author":6,"featured_media":740,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[6],"tags":[],"class_list":["post-731","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-email-migration"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Fix Outlook Connectivity Issues in Office 365 and Exchange Online<\/title>\n<meta name=\"description\" content=\"If you face Outlook 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