Solutions to resolve QuickBooks Error 6000
The different solutions required to solve QuickBooks Error Code 6000:
Solution 1: Restore a backup
You can restore a backup copy of your file to make sure that it works well as new. You can easily accomplish it with these steps:
Open the company file.
Click on the File
Select the Utilities
In case the Stop Hosting Multi-user access is on the list, then you should click on
Also, edit your company file name to include less than 210 characters long. Try and incorporate a name that only displays the important details, and nothing else.
Solution 2: Configure your firewall and your Anti-virus software.
Open your QuickBooks Database Manager.
Find the port monitor tab, and find the QuickBooks version.
Make sure you note the Firewall port number.
Open your Windows Firewall.
Click on Advanced Settings.
Right-click on the inbounds option, and select the option for New Rule.
Click on Port.
I hope these steps helps!