I am using object cache to cache the result obtained from broker database. We are using the cache channel service to invalidate the cache so that user can see the latest content. I am getting the following error in log file and the items are not updated on the website.

ERROR RMICacheChannelConnector - RMI Cache channel connector lost connection, will attempt to reconnect
java.rmi.ConnectException: Connection refused to host: 10.202.5.92; nested exception is: 
    java.net.ConnectException: Connection refused: connect
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(Unknown Source) ~[na:1.6.0_41]
    at sun.rmi.transport.tcp.TCPChannel.createConnection(Unknown Source) ~[na:1.6.0_41]
    at sun.rmi.transport.tcp.TCPChannel.newConnection(Unknown Source) ~[na:1.6.0_41]
    at sun.rmi.server.UnicastRef.invoke(Unknown Source) ~[na:1.6.0_41]
    at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(Unknown Source) ~[na:1.6.0_41]
    at java.rmi.server.RemoteObjectInvocationHandler.invoke(Unknown Source) ~[na:1.6.0_41]
    at com.sun.proxy.$Proxy46.isAlive(Unknown Source) ~[na:na]
    at com.tridion.cache.RMICacheChannelConnector.validate(RMICacheChannelConnector.java:154) ~[cd_cache.jar:na]
    at com.tridion.cache.CacheChannel$EventThread.processQueue(CacheChannel.java:581) [cd_cache.jar:na]
    at com.tridion.cache.CacheChannel$EventThread.run(CacheChannel.java:628) [cd_cache.jar:na]
    at java.lang.Thread.run(Unknown Source) [na:1.6.0_41]
    at com.tridion.util.LoggingThread.run(LoggingThread.java:117) [cd_core.jar:na]

I have tried restartign the CCS as well as the httpupload but no result. Please advice.