Problem with account configuration can also prevent send/receive error 0x800CCC0E fix 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

• The Outlook may remain stuck in the offline mode until the network is restored.
• Furthermore, there is no need to install any of the additional software to use this tool.
• 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.
• You can also send us your queries in the comment section, and we'll revert back as soon as possible.
• This indicates that the internet is working fine, but Outlook cannot connect to the mailbox server.
• Jamie Kaler, a technical writer at MailsWare, combines her Computer Science background with a passion for simplifying complex technical topics.

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 Fix Outlook and Office 365 Errors 2025 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

Click the 'Work Offline' option to reset work offline mode and reconnect to the Exchange or mailbox server. To go online, open Outlook and navigate to Send/Receive and uncheck work offline. Ensure your connection is active and Outlook can access the mail server without connectivity. In such cases, you can recreate the OST file or use the Stellar Converter for OST software to convert the problematic OST file to Outlook importable PST format.

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".

Setup Exchange Server Account Manually

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.



Sometimes a VPN or firewall blocks Outlook, so try turning those off for a minute to see if it helps. Hybrid setups—where you’ve got both on-premises Exchange servers and Office 365—can run into DNS or Autodiscover problems. If your external DNS doesn’t match the internal setup, Outlook can lose track of where it’s supposed to connect. Outdated software often brings compatibility headaches that break your connection. Further, the drive status for any drive which has a file/folder set to be available offline is stuck on "Offline". Even after following the above process, Repair Outlook Profile Online if the issue of offline still present, and OST corruption might be the actual cause.