Proxi-Repos not working, remain "Online - Ready to Connect"

I have a similar issue, similar because I don’t have LDAP setup. I’ve setup a Maven2 proxy for remote URL https://repo.maven.apache.org/maven2/, and status is now Online - Remote available, but yet see

Download https://repo.maven.apache.org/maven2/com/jcraft/jzlib/1.1.1/jzlib-1.1.1.jar
Download https://repo.maven.apache.org/maven2/com/googlecode/javaewah/JavaEWAH/1.1.6/JavaEWAH-1.1.6.jar
Download https://repo.maven.apache.org/maven2/com/jcraft/jsch.agentproxy.core/0.0.9/jsch.agentproxy.core-0.0.9.jar
Download https://repo.maven.apache.org/maven2/io/rest-assured/spring-commons/3.2.0/spring-commons-3.2.0.jar
(more artifacts)

I’ve setup my Gradle build.gradle files to access the internal repo, and I see my builds downloading from our other internal repo, but not the above repo. Any clues for me?

buildscript {
    repositories {
          maven {
            url https://nexus.mycompany.com
            credentials {
                username nexusUser
                password nexusPW
            }
        }
    }
    dependencies {
      classpath "..."
    }
}

allprojects {
    repositories {
          maven {
            url https://nexus.mycompany.com
            credentials {
                username nexusUser
                password nexusPW
            }
        }
    }
}