Your QuickBooks might be fine, but if QBDBMgrN is not running, nothing works in multi-user mode. Before reinstalling anything, try restarting the database service, updating QuickBooks, or adjusting your firewall. These practical steps can help you avoid bigger problems and resume operations swiftly. Learn how to implement them properly for a lasting solution without further interruption or confusion.-----https://www.bizmakersamerica.org/blog/recommended-tricks-to-eliminate-qbdbmgrn-not-running-error