The Quickbooks Error Code h202 is caused by a number of circumstances. As an example, an incorrect DNS configuration.
QBCFMonitor and QuickBooksDBXX are not running.
The firewall is preventing QB data from being sent. The.nd file is corrupted.
There are several issues with the QuickBooks database server manager.
The IP address of the host or server has not been recorded in QuickBooks desktop.
Inappropriate hosting settings