Are you a QuickBooks user facing the issue of error 6000? QuickBooks error 6000 is the result of a lack of protection in the system. It may be due to Firewall settings getting restricted and interruptions in the communication between the server and QuickBooks. QuickBooks may also suddenly stop working when different computers are accessing the same data, it puts the company’s accounting data at risk, and hence the error 6000 83 arises. This error also occurs when the user has not set up the hosting of the software correctly. Solutions are provided depending on what the problem is.