Random Net connection call failed errors

Question

Hi All,
I've built a Flex application which is calling coldfusion CFC through remote objects in order to retrieve data.
2 days ago, I've updated the server with coldfusion 9 and my issue is that I have sometime those kind of error messages :
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Failed"]
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Status 503"]
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Status 500"]
[RPC Fault faultString="error" faultCode="Channel.Call.Failed" faultDetail="NetConnection.Call.Failed: HTTP: Status 504"]
[RPC Fault faultString="Send failed" faultCode="Client.Error.MessageSend" faultDetail="Channel.Connect.Failed error NetConnection.Call.Failed: HTTP: Failed: url: 'http://servername/flex2gateway/'"]
It was also happening on Coldfusion 8 and even on one other sever with another application.
(but same logic  Flex -> remote Objects -> CFC -> sql2005).
When we were still running CF8 I added this <add-no-cache-headers>false</add-no-cache-headers> to the service-config.xml file but with no success.
I do not know if it's related to this but I also sometimes have this error message :
[RPC Fault faultString="Channel disconnected" faultCode="Client.Error.DeliveryInDoubt" faultDetail="Channel disconnected before an acknowledgement was received"]
Most if time the application is running fine, but I want to avoid this errors.
For example yesterday I recieved +- 50 times the NetConnection.Call.Failed error and 20 times Channel disconnected error.
Do not hesitate to ask if I need to post CF9 settings summary or something else.
Thank you for your help.
Aubry

Answer 1

That's a pity, but thanks for the reply.
Dik