Problem with account configuration can also prevent online Outlook email repair utility Outlook from connecting to the mail server, resulting in Offline Mode. Check your Access work or school settings in Windows and remove any accounts you don’t actually use. That way, Outlook won’t try to log in to the wrong domain. If Outlook says Working Offline and won’t budge, you’re probably dealing with a network glitch, a bad setting, or a profile error. Tackling these one by one usually gets things back on track.

Check OST file

• Try opening a browser or running a quick ping test to check if your network’s up.
• Just having a simple update routine and checking build numbers from time to time can save a lot of trouble.
• And thus, an Offline Storage Table (OST) file is created to save a local synchronized copy of mailbox items.
• However, Outlook may fail to recreate the OST file if it can't connect to the server or your mailbox on the server.
• All the modifications are stored locally in the OST data file before syncing with the mailbox server.
• A corrupt or damaged Outlook profile can prevent Outlook from authorizing and connecting to the mail server.
• When you keep everything updated, you cut down on the chances of file corruption.

When offline, the status is displayed in the status solve Office 365 mailbox sync delays bar at the bottom as Working Offline or Disconnected. Just having a simple update routine and checking build numbers from time to time can save a lot of trouble. Staying current with updates is probably the easiest way to keep Outlook connected.

How To Fix Outlook Stuck in Offline Mode?

When you keep everything updated, you cut down on the chances of file corruption. A lot of offline mode headaches actually start with outdated builds and unreliable OST handling. If Outlook refuses to come back online, you’re probably looking at a profile issue, a bad OST file, or a mix-up with your Exchange account setup. Fixing these directly usually brings things back to normal. Confusion happens when a device hooks up to more than one Office 365 environment.

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

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.

Download Stellar Converter for OST

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.





Additionally, it will sync every piece of server-based mail. As is known, we can switch from Offline to Online Mode and vice versa in Microsoft Outlook 2010 and later versions. Once Outlook is configured with an Exchange account, the Cached Exchange Mode is enabled automatically.



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 repair corrupted OST in Outlook 'Work Offline' option when the internet connection is not reliable.