In this post, you’ll learn more about the Oracle ErrorORA-12166: TNS:Client can not connect to HO agent. with the details on why you receive this error and the possible solution to fix it.
Oracle Error Description
ORA-12166: TNS:Client can not connect to HO agent.
Reason for the Error ORA-12166: TNS:Client can not connect to HO agent.
NVstring contained DESCRIPTION/HO.
How to fix the Error ORA-12166: TNS:Client can not connect to HO agent. ?
You can fix this error in Oracle by following the below steps
Call HO agent from integrating server.