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Experiencing Outlook disconnected issues can be frustrating, but with the right troubleshooting tips, you can regain a seamless email experience. Restarting Outlook or even your computer might help resolve temporary glitches. Verify that your email account settings are correct, including the server and login credentials. Disabling any conflicting add-ins or antivirus software can also alleviate connectivity problems. Clearing the Outlook cache or repairing the installation may solve persistent issues.
https://comfix365.com/blog/outlook-disconnected/