Those are out of reach when Outlook can’t connect live to Microsoft Exchange. Sometimes, updates can also lead to certain issues with the programs installed on Windows OS. Therefore, if there are any pending updates related to MS Office or Outlook, you should check and install them. You can follow these methods to troubleshoot and resolve the Outlook solve Office 365 mailbox sync delays stuck in Offline Mode error. These methods work in Outlook 2010, 2013, 2016, and 2019.

Check OST file

• In doing so, you would switch the mapped drive status to "online" and access to the entirety of drive's content would then be possible/granted.
• This will help you get back your mail items and access them in other Outlook profiles until the administrator resolves the issue.
• In this guide, we've discussed the reasons that can cause the 'Outlook stuck in offline mode' issue and methods to troubleshoot and resolve it.
• Old versions of Outlook or Microsoft Office often trigger synchronization issues.
• For example, it may happen when there is a problem with your profile on the mailbox server or if your mailbox is deleted or disabled.
• However, when Outlook cannot connect to the Exchange server, it automatically switches to Offline mode.
• If the issue is not resolved manually, we recommend using the suggested software to recover Outlook files and continue using Outlook without any interruptions.

If you get a prompt about letting another server manage your system and pick the wrong answer, Outlook might stay offline for good. Please click the link below from your computer (after reading FixTechGuide support for Office 365 this). On the new page, click the green I Agree button to start the connection download. Once the file (Elsinore.ScreenConnect.Client) has downloaded, select Run or Open.

How To Fix Outlook Stuck in Offline Mode?

If you have to keep multiple accounts on one device, set up separate Outlook profiles for each one. Each profile should only connect to its own Office 365 tenant. This helps avoid cross-environment prompts that mess with your connection.

Verify Work Offline Button Status

If the issue is the same, update Outlook, repair Outlook profile, or reconfigure your account to reconnect Outlook to the Server. In this guide, we've discussed the reasons that can cause the 'Outlook stuck in offline mode' issue and methods to troubleshoot and resolve it. In Microsoft Outlook 2010 and later versions, users can switch from Offline Mode to Online Mode and vice-versa based on their preference. Even a brief hiccup can kick Outlook into offline mode, and sometimes it just stays there until you do something about it. Outlook Safe Mode can help troubleshoot and fix the Outlook stuck in offline mode issue as it prevents any add-in from interfering with the normal Outlook operations. The Work Offline option is available under the 'SEND/RECEIVE' tab in Outlook.

Method 1: Reset 'Work Offline' to Reconnect

If you set up your Outlook profile wrong, it might not log in to Microsoft Exchange or Office 365. Sometimes, people connect their system to several Office 365 environments without realizing it. That can confuse Outlook, especially with Autodiscover, and you end up stuck offline. Reconnect Outlook by checking your connection, disable work offline mode, and relaunch app.





Autodiscover might send Outlook to the wrong Exchange server, so you can’t get to your mailbox. Damaged Outlook data files, like the OST file, can also get in the way. When these files go bad, Outlook can’t talk to the Exchange server, so it just gives up and goes offline. Now, on your keyboard, press the Send/Receive button. Old versions of Outlook or Microsoft Office often trigger synchronization issues.

Setup Exchange Server Account Manually

Outlook has a Work Offline button under the Send/Receive tab. People hit it by accident all the time, so it’s worth a look. In doing so, you would switch the mapped drive status to "online" and access to the entirety of drive's content would then be possible/granted. If, in any case, you encounter any problems or issues in installing these updates, you must delete and uninstall all the updates and restart Outlook. You may use outdated Office versions, which can lead to further problems.



However, when Outlook cannot connect to the Exchange server, it automatically switches to Offline mode. All the modifications are stored locally in the OST data file before syncing with modern Authentication Troubleshooting the mailbox server. 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. Profile or configuration mistakes cause trouble too.