Unable to Connect to Agents after upgrade to 1822.v87175d209b_b_5 
plugin logs are given below,

java.io.EOFException: unexpected stream termination at hudson.remoting.ChannelBuilder.negotiate(ChannelBuilder.java:478) at hudson.remoting.ChannelBuilder.build(ChannelBuilder.java:422) at hudson.slaves.SlaveComputer.setChannel(SlaveComputer.java:440) at PluginClassLoader for ec2//hudson.plugins.ec2.ssh.EC2UnixLauncher.launchRemotingAgent(EC2UnixLauncher.java:453) at PluginClassLoader for ec2//hudson.plugins.ec2.ssh.EC2UnixLauncher.launchScript(EC2UnixLauncher.java:402) at PluginClassLoader for ec2//hudson.plugins.ec2.EC2ComputerLauncher.launch(EC2ComputerLauncher.java:55) at hudson.slaves.SlaveComputer.lambda$_connect$0(SlaveComputer.java:297) at jenkins.util.ContextResettingExecutorService$2.call(ContextResettingExecutorService.java:46) at jenkins.security.ImpersonatingExecutorService$2.call(ImpersonatingExecutorService.java:80) at java.base/java.util.concurrent.FutureTask.run(FutureTask.java:317) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1144) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:642) at java.base/java.lang.Thread.run(Thread.java:1583)