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2026.01.24 09:44

Understanding these aspects of shared calendar syncing can help users anticipate potential issues and take steps to minimize conflicts. These syncing problems usually happen because of issues like a damaged Outlook profile, poor internet connection, or a corrupted OST file. If restarting Outlook or fixing the profile doesn’t work, converting the OST file is often the next step. EdbMails OST to PST Converter can help in these cases by recovering data from the inaccessible OST files and restoring them without data loss.

Third-party firewalls or antivirus software might prevent you from syncing your email and calendar events. Check the software documentation to learn how to temporarily turn it off. While Outlook provides robust calendar features, integrating additional tools can significantly enhance your scheduling experience. In this section, we’ll explore how the Virto Calendar App for Microsoft 365 and Microsoft Teams can take your calendar management to the next level. We’ll delve into the benefits of using this powerful app and highlight its features specifically designed to troubleshoot sync issues.
Understanding why these problems occur is the first step in resolving them. While Outlook’s calendar sync usually works seamlessly across devices, mobile platforms can sometimes present unique challenges. In this section, we’ll explore common troubleshooting sync steps specific to smartphones and tablets, covering both iOS and Android devices. A large OST file can lead to performance issues and result in Outlook not syncing with the Exchange Server, disrupting your Fix Office 365 password reset problems workflow.

When synchronization issues occur in Microsoft Outlook or in Microsoft Outlook Web App (formerly Outlook Web Access), you may experience the following symptoms. Now, manually sync your mailbox using the Update Folder button under the Send/Receive tab. Check with your email provider for instructions about how to create an app password for your email account.
Remember, patience is key when dealing with shared calendar sync issues. Remember, identifying the root cause is the first step to resolving your sync issues. In the following sections, we’ll dive into specific solutions to get your Outlook calendar syncing smoothly again. After rebuilding the OST file, it’s important to check for any missing mailbox data. If you find any missing items in the new OST file, you can recover them from the backup OST file using Stellar Converter for OST. This professional OST to PST converter tool can extract data from the backup OST file and convert it into PST file, which you can easily import into Outlook.
If you can sync your email when the firewall is turned off, you'll need to allow the Mail and Calendar apps through the firewall. Windows Defender Security Center is free security software that's included with Windows 10. If you haven't installed alternative security software, you should temporarily turn off Windows Defender Security Center. We're sorry you're having problems with the Mail and Calendar apps for Windows 10.