APM Insight agent prompt "Could not able to connect with server which receives metrics"

APM Insight agent prompt "Could not able to connect with server which receives metrics"

Dear All, 

Did you have any idea of the following message? I'm confirm APM agent has connected to Application Manager Server port 9090 already.

[APM_Insight_services_starter][WARNING]: Could not able to connect with server which receives metrics. Will try to reconnect after 15 minute(s). IO Error occurred.
java.net.SocketException: A system call received a parameter that is not valid. (Read failed)
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.socketRead(SocketInputStream.java:127)
        at java.net.SocketInputStream.read(SocketInputStream.java:182)
        at java.net.SocketInputStream.read(SocketInputStream.java:152)
        at com.manageengine.org.apache.http.impl.io.SessionInputBufferImpl.streamRead(SessionInputBufferImpl.java:136)
        at com.manageengine.org.apache.http.impl.io.SessionInputBufferImpl.fillBuffer(SessionInputBufferImpl.java:152)
        at com.manageengine.org.apache.http.impl.io.SessionInputBufferImpl.readLine(SessionInputBufferImpl.java:270)
        at com.manageengine.org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:140)
        at com.manageengine.org.apache.http.impl.conn.DefaultHttpResponseParser.parseHead(DefaultHttpResponseParser.java:57)
        at com.manageengine.org.apache.http.impl.io.AbstractMessageParser.parse(AbstractMessageParser.java:260)
        at com.manageengine.org.apache.http.impl.DefaultBHttpClientConnection.receiveResponseHeader(DefaultBHttpClientConnection.java:161)
        at com.manageengine.org.apache.http.impl.conn.CPoolProxy.receiveResponseHeader(CPoolProxy.java:153)
        at com.manageengine.org.apache.http.protocol.HttpRequestExecutor.doReceiveResponse(HttpRequestExecutor.java:271)
        at com.manageengine.org.apache.http.protocol.HttpRequestExecutor.execute(HttpRequestExecutor.java:123)
        at com.manageengine.org.apache.http.impl.execchain.MainClientExec.execute(MainClientExec.java:254)
        at com.manageengine.org.apache.http.impl.execchain.ProtocolExec.execute(ProtocolExec.java:195)
        at com.manageengine.org.apache.http.impl.execchain.RetryExec.execute(RetryExec.java:86)
        at com.manageengine.org.apache.http.impl.execchain.RedirectExec.execute(RedirectExec.java:108)
        at com.manageengine.org.apache.http.impl.client.InternalHttpClient.doExecute(InternalHttpClient.java:184)
        at com.manageengine.org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:82)
        at com.manageengine.org.apache.http.impl.client.CloseableHttpClient.execute(CloseableHttpClient.java:106)
        at com.manageengine.apminsight.agent.service.JavaAgentService.sendData(JavaAgentService.java:444)
        at com.manageengine.apminsight.agent.service.JavaAgentService.sendDataToServer(JavaAgentService.java:397)
        at com.manageengine.apminsight.agent.service.JavaAgentService.connect(JavaAgentService.java:231)
        at com.manageengine.apminsight.agent.service.JavaAgentService.init(JavaAgentService.java:118)
        at com.manageengine.apminsight.agent.JavaAgent$1.run(JavaAgent.java:146)
        at java.lang.Thread.run(Thread.java:811)