What is QuickBooks Error -6210, 0 and how to fix it?
There are many reasons that may create this problem. This error appears when you create an original and new QuickBooks company file. The same error also occurs when you open an already available file: Error message: Database connection confirmation failure follow the Error code: -6129, 0.
There is lots way to fix it. First, you have to find the root cause then you can easily fix this problem.