When QuickBooks shows the “QBDBMgrN Not Running” message, it means the database service isn’t connecting to the company file properly. To fix this, open the Windows Services menu and restart the QuickBooks Database Server Manager. Next, ensure your firewall and antivirus settings aren’t blocking QuickBooks. Running the QuickBooks Tool Hub and using the Network Fix utility can automatically repair common issues. Restarting your computer afterward helps refresh the connection. Following these steps restores access to your shared company files and prevents further disruptions, keeping your QuickBooks multi-user mode functioning efficiently and securely.
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