Deployment issue in EP

while i am deploying EP website facing the following error.

Microsoft Dynamics AX could not locate the Web server. Verify that Enterprise Portal is installed on the Web server. If Enterprise Portal is installed, verify that the server is available on the network

add the following code to the end of web.config file in the EP Deployment Service

<system.web>

<httpRuntime executionTimeout="3600"/>

</system.web>

The default location for the deployment service on the AOS machine is

"C:\Program Files\Microsoft Dynamics AX\60\Setup\EPDeploymentService\web.config"