I have noticed the Jenkins agent node is restarting very frequently. agent node goes offline and immediately it comes back online. Please check the error below and suggest how do I fix this issue.

Connection was broken: java.nio.channels.ClosedChannelException
        at org.jenkinsci.remoting.protocol.NetworkLayer.onRecvClosed(NetworkLayer.java:154)
        at org.jenkinsci.remoting.protocol.impl.NIONetworkLayer.ready(NIONetworkLayer.java:142)
        at org.jenkinsci.remoting.protocol.IOHub$OnReady.run(IOHub.java:792)
        at jenkins.util.ContextResettingExecutorService$1.run(ContextResettingExecutorService.java:28)
        at jenkins.security.ImpersonatingExecutorService$1.run(ImpersonatingExecutorService.java:68)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)