messagebroker/amf configuration - BlazeDS

Hi,
I am working on Flex with BlazeDS
I have a problem in channel-definition end point URL.
This is my services-config.xml configuration.
<channel-definition id="my-amf" class="mx.messaging.channels.AMFChannel">
<endpoint url="http://{server.name}:{server.port}/{context.root}/messagebroker/amf" class="flex.messaging.endpoints.AMFEndpoint"/>
</channel-definition>

My Context path is MySite ==> ...TomcatX/webapps/MySite
It works fine in localhost. http://localhost:8080/MySite/index.html

I moved the build to production environment, and run http://www.mydomain.com.
I get
[RPC Fault faultString="Send failed" faultCode="Client.Error.MessageSend" faultDetail="Channel.Connect.Failed error NetConnection.Call.Failed: HTTP: Failed: url: 'http://www.mydomain.com/messagebroker/amf'"
error.



I have changed context root from '/MySite' to '/'
Again I am getting the same error.

Can someone help me to solve this issue?