To resolve the issue of outlook disconnected, start by checking your internet connection and ensuring that it is stable. If the issue persists, try restarting Outlook or your computer. Updating Outlook to the latest version or repairing the installation may also help. Additionally, you can try disabling any add-ins or third-party antivirus software that may be interfering with Outlook's connection. If none of these solutions work, contact your email service provider for further assistance.