Unable to establish loopback connection

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scmuser created the topic: Unable to establish loopback connection
Issues –
Unable to establish loopback connection
&
An internal error occurred.
&
Caused by: java.net.SocketException: No buffer space available (maximum connections reached?): connect

Error
ERROR: An internal error occurred. [0x8001FFFF]
org.jinterop.dcom.common.JIException: An internal error occurred. [0x8001FFFF]
at org.jinterop.dcom.core.JIComServer.init(JIComServer.java:546)
at org.jinterop.dcom.core.JIComServer.initialise(JIComServer.java:458)
at org.jinterop.dcom.core.JIComServer.(JIComServer.java:427)
at org.jvnet.hudson.wmi.WMI.connect(WMI.java:41)
at hudson.os.windows.ManagedWindowsServiceLauncher.launch(ManagedWindowsServiceLauncher.java:139)
at hudson.slaves.SlaveComputer$1.call(SlaveComputer.java:194)
at java.util.concurrent.FutureTask$Sync.innerRun(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.io.IOException: Unable to establish loopback connection
at sun.nio.ch.PipeImpl$Initializer.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.nio.ch.PipeImpl.(Unknown Source)
at sun.nio.ch.SelectorProviderImpl.openPipe(Unknown Source)
at java.nio.channels.Pipe.open(Unknown Source)
at sun.nio.ch.WindowsSelectorImpl.(Unknown Source)
at sun.nio.ch.WindowsSelectorProvider.openSelector(Unknown Source)
at sun.nio.ch.Util.getTemporarySelector(Unknown Source)
at sun.nio.ch.SocketAdaptor$SocketInputStream.read(Unknown Source)
at sun.nio.ch.ChannelInputStream.read(Unknown Source)
at org.jinterop.dcom.transport.JIComTransport.receive(JIComTransport.java:147)
at rpc.DefaultConnection.receiveFragment(DefaultConnection.java:182)
at rpc.DefaultConnection.receive(DefaultConnection.java:68)
at rpc.ConnectionOrientedEndpoint.receive(ConnectionOrientedEndpoint.java:227)
at rpc.ConnectionOrientedEndpoint.connect(ConnectionOrientedEndpoint.java:251)
at rpc.ConnectionOrientedEndpoint.bind(ConnectionOrientedEndpoint.java:217)
at rpc.ConnectionOrientedEndpoint.rebind(ConnectionOrientedEndpoint.java:153)
at org.jinterop.dcom.transport.JIComEndpoint.rebindEndPoint(JIComEndpoint.java:40)
at org.jinterop.dcom.core.JIComServer.init(JIComServer.java:529)
… 10 more
Caused by: java.net.SocketException: No buffer space available (maximum connections reached?): connect
at sun.nio.ch.Net.connect(Native Method)
at sun.nio.ch.SocketChannelImpl.connect(Unknown Source)
at java.nio.channels.SocketChannel.open(Unknown Source)