Quickbooks error 6175, 0 may occur due to  presence of any firewall settings. Quickbooks Error 6175, 0 is seen when the database server manager is being used in multi-user mode or the server which is hosting the file is busy. 

To fix quickbooks Quickbooks error 6175,0:

In the file menu of the Quickbooks, go to the utilities tab.

Select host multi-user access and click yes.

It will help you use multi-user mode.

If the Quickbooks error 61750 still troubles you, you can connect to the experts of Quickbooks at QBSsolved by simply calling at 888-910-1619.