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It should be switched from offline to online mode. As is known, we can switch from Offline to Online Mode Fix Outlook and Office365 Sync Issues and vice versa in Microsoft Outlook 2010 and later versions. Once Outlook is configured with an Exchange account, the Cached Exchange Mode is enabled automaticall


Users can also utilize the 'Work Offline' option when there is an unreliable internet connection. When the problem is with the internet connection, Outlook may display Working Offline or Disconnected status. The Outlook may remain stuck in the offline mode until the network is restored. In this guide, we've discussed the reasons that can cause the 'Outlook stuck in offline mode' issue and methods to troubleshoot and resolve i


This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. For protection, back up the registry before you modify it so that you can restore it if a problem occurs. For more information about how to back up and restore the registry, see How to back up and restore the registry in Windows. Now, we will verify the server settings to fix the Outlook synchronization error. The in-built Synchronization process happens when your OST or PST files get update

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If you don’t get this right, Outlook will just sit in offline mode, unable to do much. Are you experiencing the problem of 'Outlook stuck in offline mode' and looking for a comprehensive solution? When offline, the status is displayed in the status bar at the bottom as Working Offline or Disconnected. Further, the drive status for any drive which has a file/folder set to be available offline is stuck on "Offline


If these methods do not resolve the issue, we recommend that you rebuild the .ost file. To do this, delete the .ost file, and then let Outlook download the information again from Exchange Server. For more information, see the More information section of this article. Users can also convert OST files into various file formats, including PST, HTML, EML, MSG, vCard, et


We have given you complete information about the synchronization issues folders in Outlook, and the ways to solve it manually and automatically. Check whether the numbers of items in the Offline and Server folders are the same. If it's the same, then synchronization is proper, but in case of variation, check profile settings. When these symptoms occur, or you have other problems synchronizing, the problem might be a corrupted .ost fil


You can try any of the methods listed above to rebuild the PST file. Using the software, you can repair and rebuild a PST file of any size, irrespective of the cause of corruption. Unlike the SCANPST tool, it won’t crash halfway if the corruption level is high or file is large. ScanPST mostly validates and corrects errors in the internal data structures of a .pst file. Therefore, structures such as BTrees and reference counts, are checked and repaired as necessary. These low-level objects have no knowledge of the upper-level structures, such as messages, calendar items, and so on, that are built upon the


Any problems are noted in a message that has "OST Integrity Check" as its Subject. The OST Integrity Check Tool (Scanost.exe) is installed when you install Outlook in the following locations, as appropriate for the Outlook version that you are running. For more information about the Fix Outlook and Office365 Sync Issues maximum allowed share of server resources on Microsoft Exchange Server 2007, see A user is consuming their maximum allowed share of serve


As stated in the 9646 event that is shown Fix Outlook and Office365 Sync Issues in the "Symptoms" section, the default limit for objtFolder objects per mailbox is 500. In Outlook 2007, this problem is more likely to occur if you also have the following registry data configured on your Outlook client. After the update, restart the system and check if the error is resolved. After these instructions, ensure the sync settings are correct and check everything is working well. For a similar error caused by a different issue, refer to Outlook shows Disconnected in status bar if the last character in legacyExchangeDN is a space. To view the scan log, start Outlook, and then open the Deleted Items folde