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 guide to Office 365 sign-in errors stuck in Offline Mode error. These methods work in Outlook 2010, 2013, 2016, and 2019.

Check OST file

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• 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.
• Shoviv OST to PST converter is a specialized tool that is designed and developed to convert the OST file to the PST format.
• 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 reset cached Exchange mode 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?

Move it to a backup folder, like Desktop\OST Backup. Every business setup is different, and sometimes these problems run deeper than a quick fix. Our organization requires several folders from our mapped network drives be set to "Always Available Offline". Create your account and connect with a world of communities. There could be several reasons for your Outlook disconnect.

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

If Outlook can’t get to the mail server, no amount of tweaking inside Outlook will help. Try opening a browser or running a quick ping test to check if your network’s up. Outlook needs Microsoft Exchange and Office 365 to stay connected. If Outlook can’t log in to those services, it just flips into offline mode. When Microsoft Outlook says "Working Offline," it’s basically struggling to talk to your mail server. This can happen for all sorts of reasons—maybe it’s a local profile problem, a conflict with Microsoft Exchange, or an Office 365 environment.

Download Stellar Converter for OST

A broken Outlook profile can mess up syncing and keep you offline. We usually suggest making a new profile instead of spending ages trying to fix the old one. From the file explorer ribbon, under the 'Easy Access' drop down menu, you could toggle from "offline" to "online".





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.

Essential Troubleshooting Steps for Reconnecting Outlook

If any updates to Outlook or MS Office are pending, get them installed as soon as possible. However, if you Outlook OST vs PST repair are experiencing the issue after installing the updates, revert or uninstall the updates and check your Outlook. It’s a good idea to turn on automatic updates in Microsoft 365 Apps for enterprise. That way, you get security fixes and connectivity tweaks right away. If your organization uses volume licensing, schedule those updates through management tools like Microsoft Endpoint Configuration Manager.