Why do I have connection problems with Windows agents when I convert JENKINS_URL to HTTPS?

[Jana (JS)]

@turkcankeskin

java.util.concurrent.ExecutionException: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Connection closed before acknowledgement sent

@turkcankeskin check this

Issue while connecting to windows agent from upgraded jenkins 2.387.1

Hi, I am facing issue while making windows servers as an agent with jenkins. please see below details of it. Jenkins version - 2.387.1 JAVA - openjdk version “11.0.8” 2020-07-14 LTS When we are trying to connect a windows server using agent.jar with jenkins (Using JNLP-4), getting following Error - ERROR - Apr 04, 2023 8:36:54 PM hudson.remoting.jnlp.Main createEngine INFO: Setting up agent: IN******** Apr 04, 2023 8:36:54 PM hudson.remoting.Engine startEngine INFO: Using Remoting versi…