The problem lies in how many computers you are using for hosting the company file, if in case you are using more than one computer to host the company file, then this is the reason this error QuickBooks error 6000 83 is occurring, you can take off the hosting from the other computers. In case you have tried every method given above which has not worked out yet, then please feel free to get in touch with our QuickBooks customer support, as our team of specialists can guide you through the process of fixing these errors. http://bit.ly/2J5gYMr #quickbooks #quickbooksupport #quickbookserrorsupport #quickbookserror600083 #quickbookscustomersupport