qbdbmgrn not running on this computer

One of the most common causes of qbdbmgrn not running on this computer is that your firewall is preventing QuickBooks desktop from connecting to the Intuit server. To resolve the issue, we can only recommend that you update the firewall before configuring exceptions and ports. QBdbmgrn.exe is a multi-user access utility in QuickBooks. The programme handles network connectivity for the data file on the host computer. Other possible causes include:

• The firewall configuration is either incomplete or incorrect.
• QuickBooks Database Server Manager (QBDBSM) is not up to date.
• There are issues with QuickBooks Network files (.ND files).
• The database server manager was installed incorrectly.
• Third-party firewall software is preventing you from accessing QuickBooks.
• The internet is down.