Content

To do this, hit Windows + R, type outlook.exe /safe, and hit Enter. If it connects in Safe Mode, one of your add-ins is probably the culprit. Closing Outlook and reopening it helps clear up minor glitches. Try launching Outlook in Safe Mode to check if add-ins are causing trouble. Double-check that you’re on Office 365 sync problems and login fixes the right network, especially if you have several Wi-Fi options.

Check OST file

Reconnect Outlook by checking your connection, disable work offline mode, and relaunch app.Outlook has a Work Offline button under the Send/Receive tab.These methods work in Outlook 2010, 2013, 2016, and 2019.The changes are saved locally in the Outlook OST data file and later synchronized with the mailbox server.It’s really important to know which Exchange or Office 365 environment Outlook should use.If the issue is the same, update Outlook, repair Outlook profile, or reconfigure your account to reconnect Outlook to the Server.

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 Outlook Stuck on Synchronizing Folders 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?

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 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".

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, Outlook stuck updating folders solution if the issue of offline still present, and OST corruption might be the actual cause.