Message icon - Warning For server Server-1, the Node Manager associated with machine Machine-0 is not reachable

Issue -
Message icon - Warning    For server Server-1, the Node Manager associated with machine Machine-0 is not reachable

Message icon - Warning    All of the servers selected are currently in a state which is incompatible with this operation or are not associated with a running Node Manager. No action will be performed. 

<Warning> <Uncaught exception in server handler: javax.net.ssl.SSLKeyException: [Security:090482]BAD_CERTIFICATE alert was r
eceived from abc-xyz.com - xxx.xx.xx.xx. Check the peer to determine why it rejected the certificate chain (trusted CA configuration,
hostname verification). SSL debug tracing may be required to determine the exact reason the certificate was rejected.>
javax.net.ssl.SSLKeyException: [Security:090482]BAD_CERTIFICATE alert was received from . Check the peer to
determine why it rejected the certificate chain (trusted CA configuration, hostname verification). SSL debug tracing may be required to determine the
exact reason the certificate was rejected.
        at com.certicom.tls.interfaceimpl.TLSConnectionImpl.fireException(Unknown Source)
        at com.certicom.tls.interfaceimpl.TLSConnectionImpl.fireAlertReceived(Unknown Source)
        at com.certicom.tls.record.alert.AlertHandler.handle(Unknown Source)
        at com.certicom.tls.record.alert.AlertHandler.handleAlertMessages(Unknown Source)
        at com.certicom.tls.record.MessageInterpreter.interpretContent(Unknown Source)
        at com.certicom.tls.record.MessageInterpreter.decryptMessage(Unknown Source)
        at com.certicom.tls.record.ReadHandler.processRecord(Unknown Source)
        at com.certicom.tls.record.ReadHandler.readRecord(Unknown Source)
        at com.certicom.tls.record.ReadHandler.readUntilHandshakeComplete(Unknown Source)
        at com.certicom.tls.interfaceimpl.TLSConnectionImpl.completeHandshake(Unknown Source)
        at com.certicom.tls.record.ReadHandler.read(Unknown Source)
        at com.certicom.io.InputSSLIOStreamWrapper.read(Unknown Source)
        at sun.nio.cs.StreamDecoder$CharsetSD.readBytes(StreamDecoder.java:411)
        at sun.nio.cs.StreamDecoder$CharsetSD.implRead(StreamDecoder.java:453)
        at sun.nio.cs.StreamDecoder.read(StreamDecoder.java:183)
        at java.io.InputStreamReader.read(InputStreamReader.java:167)
        at java.io.BufferedReader.fill(BufferedReader.java:136)
        at java.io.BufferedReader.readLine(BufferedReader.java:299)
        at java.io.BufferedReader.readLine(BufferedReader.java:362)
        at weblogic.nodemanager.server.Handler.run(Handler.java:66)
        at java.lang.Thread.run(Thread.java:595)


Resolution -

Modified the correct host name at node manager "Listen Address" and bounced the weblogic admin server and node manager.