If you are facing the issue of Outlook working offline, there are several ways to fix it. Here are some of the ways to fix the issue:

1. Disable Working Offline Mode:Outlook allows you to work offline or online. If you are facing the issue of Outlook working offline, then you should check if you have enabled the working offline mode. If it is enabled, then disable it by following these steps:

• Open Outlook.

• Click on the “Send/Receive” tab.

• Click on the “Work Offline” button to disable it.

2. Open Outlook in Safe Mode:If you did not enable work offline mode and are not able to connect to the server, then try to open Outlook in safe mode.

3. Check Problematic Add-ins:Sometimes add-ins can cause issues with Outlook. You can check if any add-ins are causing the issue by following these steps:

• Open Outlook.

• Click on “File” > “Options” > “Add-ins”.

• Select “COM Add-ins” from the drop-down menu and click on “Go”.

• Uncheck all add-ins and click on “OK”.

4. Check Internet Connection:Ensure that your internet connection is working properly.

5. Repair Office Installation:If none of the above methods work, then try repairing your Office installation.

I hope this helps!