Troubleshooting internet connection issues, firewall settings, and having mulitple instances of QuickBooks installed on the computer.

Solution for Error IC 67186429: "Internet connection error. A connection with the server could not be established," caused by a firewill that prevents QuickBooks from accessing the Internet.  Contains steps to troubleshoot and resolve the error for different QuickBooks versions.

You can set access permissions for QuickBooks database users in Windows XP.