QuickBooks accounting software has contributed significantly to the growth and success of hundreds of thousands of businesses worldwide. This is the preferred choice of small and medium businesses due to its ease of use and extensive features. Intuit, the maker of QuickBooks, releases a new version every year and adds new and improved features to ensure it is error-free. However, some issues continue to appear on users' screens. QuickBooks error code 6010 is a common error that users often encounter due to denied network access. If your antivirus or firewall software is preventing QuickBooks from connecting to the network, this error may appear on your computer screen.