The QuickBooks 2021 Server not running on this PC is a mistake that happens when the program is utilized in multi-client mode. This generally happens on the grounds that the help has been crippled on your Quickbooks work area programming. QBDBMgrN not running on this PC" mistake happens in QuickBooks while utilizing the program in multi-client mode. The QBDBMgrn.exe is a fundamental capacity in Quickbooks that executes numerous client usefulness in Quickbooks. At the point when this record gets into some difficult situation, at that point you will see a blunder. QBDBMgrN is a capacity in QuickBooks that permits different clients to get to the information base and friends records put away on a facilitated worker. QBDBMgrN.exe not running mistake happens when QBDBMgrN administration is incapacitated on your PC. QuickBooks 2021 Server Not Running.