Unable to access IMS Configuration Utility after IMS server machine IP address is changed

Steps to resolve this issue.

1. Go to network connection in the PC, and change the network setting of 
IP Environment: TAM ESSO IMS> 
Solution: 
If the IP address has changed, you will need to modify a tomcat 
configuration file as follow: 
1. Go to [IMS Server installation folder]\conf 
2. Open server.xml 
3. Search for "WebConfigurator-Service" - this should be the "name" 
attribute value of the element node "Service" 
4. Within the "Service" node, edit the second IP address in the 
attribute node "allow" of the element node "Value" 
5. Save the xml file 
6. Restart the IMS Server