We are unable to access the ITAM Application in the ITAM test server. Facing below error, when we try to access the url. After changing the instance name, we are facing this issue. Kindly check and help on fixing this issue. Attached the error screenshot for your reference.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ComponentModel.Win32Exception: The remote computer refused the network connection
Release : 17.3
# Check for the database connectivity issue .
# Use SQLCMD command from the ITAM Application/ Webserver.
sqlcmd -S <hostname>\<instance name> -U <username> -P <password>
# Request DBA/Network Administrator to fix the connectivity issue.