Attempt to run reports or create new reports from the MOI MPM UI. Try to create a new report, get a blank screen and eventually a message that says that there was a timeout.
Release : 2.1
Reference the port usage for MOI, in particular the reporting port 61341 from the MOI 2.1 Technical Documentation (section: Port Usage):
Address Mainframe Operational Intelligence Prerequisites
From the above link: 'The MOI Reporting user interface uses ports 61340 (http) and 61341 (https).'
Verify these ports are available for access by MOI, no fire wall restrictions or security issues exist.