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.
• 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.
• To do this, hit Windows + R, type outlook.exe /safe, and hit Enter.
• However, when Outlook cannot connect to the Exchange server, it automatically switches to Offline mode.

By handling the setup yourself, you make sure Outlook always connects to the right server. If you’re on a company domain, make sure your DNS settings look right. Messed-up DNS can keep Outlook from finding the mail server. Flushing the DNS cache with ipconfig /flushdns sometimes clears up weird issues. Outlook might Microsoft Outlook Email Repair Tool Online display an Offline working mode or ‘Disconnected’ if the issue arises with internet connectivity. Outlook could remain in disconnected mode until the connection is back online.

How To Fix Outlook Stuck in Offline Mode?

The biggest problems usually involve too many Office 365 connections or outdated Microsoft Office components. If Outlook asks if another Exchange server can manage your system, hit No unless it’s your main domain. That keeps Outlook from getting confused and stuck offline.

Verify Work Offline Button Status

If you skip patches, the client might stop connecting to Exchange Online or on-premises servers. By keeping unnecessary connections out and your profiles tidy, you keep Outlook connected to the right Office 365 environment. Don’t let secondary Exchange servers manage your device if you don’t have to. Accepting those prompts can shift control away from your main email domain and cause more offline issues. Sometimes Outlook connects to the wrong Exchange environment because of Autodiscover confusion, especially if your computer has several Office 365 or Exchange accounts. Setting up the Exchange account by hand avoids this.

Method 1: Reset 'Work Offline' to Reconnect

The Work Offline option is selected on Outlook's Send/Receive tab. First, check to see if the Connected status is displayed or not. If it is not displayed, double-check your internet connection and re-examine it. To resolve the Outlook stuck offline working issue, click "Work offline" to reset and reconnect the Exchange server.





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.





Given below are just a few examples of possible reasons. Select Work Offline from the Send/Receive tab in Outlook to reconnect. Upgrade to Microsoft Edge to take advantage of the latest features, security updates, and technical support.



Identify the cause of this error before restoring Outlook back to online mode. A corrupt or damaged Outlook profile can prevent Outlook from authorizing and connecting to the mail server. Due to this, we get an error usually called Outlook stuck in offline mode. Outlook automatically switches to Offline mode when it can't connect to the Exchange server. Users can also use the fix MFA prompts not working 'Work Offline' option when the internet connection is not reliable.