WebLogic Server : Node Manager

Issue Reported : On Admin server "Servers" link was not loading the servers page. I tail the nohup.out but logs are not flowing . All other links were working fine  except "Servers" link.
Did a thread dump found SSL was not established.

[ACTIVE] ExecuteThread: '9' for queue: 'weblogic.kernel.Default (self-tuning)'" daemon prio=10 tid=0x00007f6d34011000 nid=0x1cfc runnable [0x00007f6d268e4000]
   java.lang.Thread.State: RUNNABLE
        at java.net.SocketInputStream.socketRead0(Native Method)
        at java.net.SocketInputStream.read(SocketInputStream.java:129)
        at weblogic.utils.io.ChunkedInputStream.read(ChunkedInputStream.java:159)
        at java.io.InputStream.read(InputStream.java:85)
        at com.certicom.tls.record.ReadHandler.readFragment(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)
        - locked <0x00007f6d9ad86ac8> (a com.certicom.tls.interfaceimpl.TLSConnectionImpl)
        at com.certicom.tls.record.WriteHandler.write(Unknown Source)
        at com.certicom.io.OutputSSLIOStreamWrapper.write(Unknown Source)
        at sun.nio.cs.StreamEncoder.writeBytes(StreamEncoder.java:202)
        at sun.nio.cs.StreamEncoder.implFlushBuffer(StreamEncoder.java:272)
        at sun.nio.cs.StreamEncoder.implFlush(StreamEncoder.java:276)
        at sun.nio.cs.StreamEncoder.flush(StreamEncoder.java:122)
        - locked <0x00007f6d9ad86c20> (a java.io.OutputStreamWriter)
        at java.io.OutputStreamWriter.flush(OutputStreamWriter.java:212)
        at java.io.BufferedWriter.flush(BufferedWriter.java:236)
        - locked <0x00007f6d9ad86c20> (a java.io.OutputStreamWriter)
        at weblogic.nodemanager.common.DataFormat.writeCommand(DataFormat.java:247)
        at weblogic.nodemanager.client.NMServerClient.sendCmd(NMServerClient.java:318)
        at weblogic.nodemanager.client.NMServerClient.sendHello(NMServerClient.java:128)
        at weblogic.nodemanager.client.NMServerClient.connect(NMServerClient.java:239)
        at weblogic.nodemanager.client.NMServerClient.checkConnected(NMServerClient.java:200)
        at weblogic.nodemanager.client.NMServerClient.getState(NMServerClient.java:37)
        - locked <0x00007f6d9ad86cd8> (a weblogic.nodemanager.client.SSLClient)
        at weblogic.nodemanager.mbean.NodeManagerRuntime.getState(NodeManagerRuntime.java:438)
        at weblogic.nodemanager.mbean.NodeManagerRuntime.getState(NodeManagerRuntime.java:457)
        at weblogic.server.ServerLifeCycleRuntime.getStateNodeManager(ServerLifeCycleRuntime.java:752)
        at weblogic.server.ServerLifeCycleRuntime.getState(ServerLifeCycleRuntime.java:584)