Multi-user access to company files is hindered when the QuickBooks Database Server Manager (QBDBMGRN) service malfunctions, resulting in the "QBDBMGRN Not Running" issue. Usually, firewall restrictions, out-of-date software, or corrupted system files are the cause of this problem. Restarting the service, upgrading QuickBooks, or adjusting firewall settings are necessary to fix it. Please call us at +1.833.802.0002 if you want to talk to a QuickBooks support specialist right now.