Experiencing the same issue:
Jenkins 1.654
Apr 20, 2016 10:33:53 AM INFO hudson.TcpSlaveAgentListener$ConnectionHandler run
Accepted connection #15 from /10.192.0.32:49188
Apr 20, 2016 10:36:17 AM INFO org.jenkinsci.plugins.vSphereCloud InternalLog
[GRW7-64-A] Powering down hard
Apr 20, 2016 10:36:18 AM WARNING jenkins.slaves.JnlpSlaveAgentProtocol$Handler$1 onClosed
NioChannelHub keys=3 gen=482437: Computer.threadPoolForRemoting 6 for GRW7-64-A terminated
java.io.IOException: Connection aborted: org.jenkinsci.remoting.nio.NioChannelHub$MonoNioTransport@f5709[name=GRW7-64-A]
at org.jenkinsci.remoting.nio.NioChannelHub$NioTransport.abort(NioChannelHub.java:208)
at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:629)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: An existing connection was forcibly closed by the remote host
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(Unknown Source)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source)
at sun.nio.ch.IOUtil.read(Unknown Source)
at sun.nio.ch.SocketChannelImpl.read(Unknown Source)
at org.jenkinsci.remoting.nio.FifoBuffer$Pointer.receive(FifoBuffer.java:137)
at org.jenkinsci.remoting.nio.FifoBuffer.receive(FifoBuffer.java:310)
at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:561)
... 7 more
Apr 20, 2016 10:36:37 AM WARNING org.jenkinsci.remoting.nio.NioChannelHub run
Communication problem
java.io.IOException: An established connection was aborted by the software in your host machine
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(Unknown Source)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source)
at sun.nio.ch.IOUtil.read(Unknown Source)
at sun.nio.ch.SocketChannelImpl.read(Unknown Source)
at org.jenkinsci.remoting.nio.FifoBuffer$Pointer.receive(FifoBuffer.java:137)
at org.jenkinsci.remoting.nio.FifoBuffer.receive(FifoBuffer.java:310)
at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:561)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Apr 20, 2016 10:36:37 AM INFO org.jenkinsci.plugins.vSphereCloud InternalLog
[GRW7-64-A] Running disconnect procedure...
Apr 20, 2016 10:36:37 AM INFO org.jenkinsci.plugins.vSphereCloud InternalLog
[GRW7-64-A] Shutting down Virtual Machine...
Apr 20, 2016 10:36:37 AM WARNING jenkins.slaves.JnlpSlaveAgentProtocol$Handler$1 onClosed
NioChannelHub keys=2 gen=486936: Computer.threadPoolForRemoting 6 for GRW7-64-A terminated
java.io.IOException: Connection aborted: org.jenkinsci.remoting.nio.NioChannelHub$MonoNioTransport@1fc9696[name=GRW7-64-A]
at org.jenkinsci.remoting.nio.NioChannelHub$NioTransport.abort(NioChannelHub.java:208)
at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:629)
at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: An established connection was aborted by the software in your host machine
at sun.nio.ch.SocketDispatcher.read0(Native Method)
at sun.nio.ch.SocketDispatcher.read(Unknown Source)
at sun.nio.ch.IOUtil.readIntoNativeBuffer(Unknown Source)
at sun.nio.ch.IOUtil.read(Unknown Source)
at sun.nio.ch.SocketChannelImpl.read(Unknown Source)
at org.jenkinsci.remoting.nio.FifoBuffer$Pointer.receive(FifoBuffer.java:137)
at org.jenkinsci.remoting.nio.FifoBuffer.receive(FifoBuffer.java:310)
at org.jenkinsci.remoting.nio.NioChannelHub.run(NioChannelHub.java:561)
... 7 more
Apr 20, 2016 10:41:46 AM WARNING org.eclipse.jetty.util.log.JavaUtilLog warn
java.nio.channels.ClosedChannelException
at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(Unknown Source)
at sun.nio.ch.SocketChannelImpl.write(Unknown Source)
at org.eclipse.jetty.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:293)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.flush(SelectChannelEndPoint.java:402)
at org.eclipse.jetty.io.nio.SslConnection.process(SslConnection.java:337)
at org.eclipse.jetty.io.nio.SslConnection.access$900(SslConnection.java:48)
at org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.flush(SslConnection.java:738)
at org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.shutdownOutput(SslConnection.java:641)
at org.eclipse.jetty.io.nio.SslConnection.onIdleExpired(SslConnection.java:260)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.onIdleExpired(SelectChannelEndPoint.java:349)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:326)
at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Apr 20, 2016 10:42:19 AM WARNING org.eclipse.jetty.util.log.JavaUtilLog warn
java.nio.channels.ClosedChannelException
at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(Unknown Source)
at sun.nio.ch.SocketChannelImpl.write(Unknown Source)
at org.eclipse.jetty.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:293)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.flush(SelectChannelEndPoint.java:402)
at org.eclipse.jetty.io.nio.SslConnection.process(SslConnection.java:337)
at org.eclipse.jetty.io.nio.SslConnection.access$900(SslConnection.java:48)
at org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.flush(SslConnection.java:738)
at org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.shutdownOutput(SslConnection.java:641)
at org.eclipse.jetty.io.nio.SslConnection.onIdleExpired(SslConnection.java:260)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.onIdleExpired(SelectChannelEndPoint.java:349)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:326)
at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Apr 20, 2016 10:46:19 AM WARNING org.eclipse.jetty.util.log.JavaUtilLog warn
java.nio.channels.ClosedChannelException
at sun.nio.ch.SocketChannelImpl.ensureWriteOpen(Unknown Source)
at sun.nio.ch.SocketChannelImpl.write(Unknown Source)
at org.eclipse.jetty.io.nio.ChannelEndPoint.flush(ChannelEndPoint.java:293)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.flush(SelectChannelEndPoint.java:402)
at org.eclipse.jetty.io.nio.SslConnection.process(SslConnection.java:337)
at org.eclipse.jetty.io.nio.SslConnection.access$900(SslConnection.java:48)
at org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.flush(SslConnection.java:738)
at org.eclipse.jetty.io.nio.SslConnection$SslEndPoint.shutdownOutput(SslConnection.java:641)
at org.eclipse.jetty.io.nio.SslConnection.onIdleExpired(SslConnection.java:260)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint.onIdleExpired(SelectChannelEndPoint.java:349)
at org.eclipse.jetty.io.nio.SelectChannelEndPoint$2.run(SelectChannelEndPoint.java:326)
at winstone.BoundedExecutorService$1.run(BoundedExecutorService.java:77)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Much more information is needed to investigate further. Start by including the full error message and stack trace if present, as well as any possibly relevant log messages.
https://wiki.jenkins-ci.org/display/JENKINS/How+to+report+an+issue