When attempting to open the Information Server 8.5 web console, you receive the error
SRVE0255E: A WebGroup/Virtual Host to handle / has not been defined.
This is caused by using an address of the form http://hostname:9080
which would work in release 8.1 but does not work in release 8.5 .
Resolving the problem
Use an address of the form http://hostname:9080/ibm/iis/console