1.  In jenkins global configuration set  TCP port for JNLP agents as random

       Agent protocol :  select Java Web Start Agent Protocol/1 /2/4  and disable 3

2. Create windows node and set launch mode as  Launch agent via Java Web Start

3.  Go to windows machine , run command through java -jar slave.jar *****   which copied form agent configuration page. **

it report following erros

INFO: Remoting server accepts the following protocols: [JNLP4-connect, JNLP-connect, Ping, JNLP2-connect]

INFO: Trying protocol: JNLP4-connect
Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Protocol JNLP4-connect encountered an unexpected exception
java.util.concurrent.ExecutionException: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Connection closed before acknowledgement sent
        at org.jenkinsci.remoting.util.SettableFuture.get(SettableFuture.java:223)
        at hudson.remoting.Engine.innerRun(Engine.java:590)
        at hudson.remoting.Engine.run(Engine.java:451)
Caused by: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Connection closed before acknowledgement sent
        at org.jenkinsci.remoting.protocol.impl.AckFilterLayer.onRecvClosed(AckFilterLayer.java:280)
        at org.jenkinsci.remoting.protocol.ProtocolStack$Ptr.onRecvClosed(ProtocolStack.java:832)
        at org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154)
        at org.jenkinsci.remoting.protocol.impl.BIONetworkLayer.access$1500(BIONetworkLayer.java:48)
        at org.jenkinsci.remoting.protocol.impl.BIONetworkLayer$Reader.run(BIONetworkLayer.java:247)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at hudson.remoting.Engine$1$1.run(Engine.java:98)
        at java.lang.Thread.run(Unknown Source)

Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to webrtc-checkin.sh.intel.com:48840
Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Server reports protocol JNLP4-plaintext not supported, skipping
Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Server reports protocol JNLP3-connect not supported, skipping
Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Trying protocol: JNLP2-connect
Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Protocol JNLP2-connect encountered an unexpected exception
java.util.concurrent.ExecutionException: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Server didn't accept the handshake:
        at java.util.concurrent.FutureTask.report(Unknown Source)
        at java.util.concurrent.FutureTask.get(Unknown Source)
        at hudson.remoting.Engine.innerRun(Engine.java:590)
        at hudson.remoting.Engine.run(Engine.java:451)
Caused by: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Server didn't accept the handshake:
        at org.jenkinsci.remoting.engine.JnlpProtocol2Handler.sendHandshake(JnlpProtocol2Handler.java:134)
        at org.jenkinsci.remoting.engine.LegacyJnlpProtocolHandler$2.call(LegacyJnlpProtocolHandler.java:162)
        at org.jenkinsci.remoting.engine.LegacyJnlpProtocolHandler$2.call(LegacyJnlpProtocolHandler.java:158)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at hudson.remoting.Engine$1$1.run(Engine.java:98)
        at java.lang.Thread.run(Unknown Source)

Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Connecting to webrtc-checkin.sh.intel.com:48840
Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Trying protocol: JNLP-connect
Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener status
INFO: Protocol JNLP-connect encountered an unexpected exception
java.util.concurrent.ExecutionException: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Server didn't accept the handshake:
        at java.util.concurrent.FutureTask.report(Unknown Source)
        at java.util.concurrent.FutureTask.get(Unknown Source)
        at hudson.remoting.Engine.innerRun(Engine.java:590)
        at hudson.remoting.Engine.run(Engine.java:451)
Caused by: org.jenkinsci.remoting.protocol.impl.ConnectionRefusalException: Server didn't accept the handshake:
        at org.jenkinsci.remoting.engine.JnlpProtocol1Handler.sendHandshake(JnlpProtocol1Handler.java:121)
        at org.jenkinsci.remoting.engine.LegacyJnlpProtocolHandler$2.call(LegacyJnlpProtocolHandler.java:162)
        at org.jenkinsci.remoting.engine.LegacyJnlpProtocolHandler$2.call(LegacyJnlpProtocolHandler.java:158)
        at java.util.concurrent.FutureTask.run(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
        at hudson.remoting.Engine$1$1.run(Engine.java:98)
        at java.lang.Thread.run(Unknown Source)

Nov 28, 2017 4:35:41 PM hudson.remoting.jnlp.Main$CuiListener error
SEVERE: The server rejected the connection: None of the protocols were accepted
java.lang.Exception: The server rejected the connection: None of the protocols were accepted
        at hudson.remoting.Engine.onConnectionRejected(Engine.java:651)
        at hudson.remoting.Engine.innerRun(Engine.java:615)
        at hudson.remoting.Engine.run(Engine.java:451)

4.  Back to global configuration and disable JNLP protocol 4 , keep 1 and 2.  Still can not connect to master