Centreon reporting module shows states as “undetermined”

Problem:
The hosts and services are correctly monitored in the “Monitoring” module but in the “Reporting” module all states are shown as undetermined.
Solution:
To get straight to the point: it is most likely, that a single setting is not configured correctly in the ndomod.cfg:
In the Centreon 2.0 webinterface go to
Configuration > Centreon > ndomod.cfg > Poller Prinzipal (or however it is named)
Now have a look at “Data processing options”. If it is set to “-1” nothing will be written to the database. In order to get it working you need to enter the correct value. Use “67108863” if “everything” should be written to the database. The German company Consol offers a free online calculator for the data_processing_options-setting.
If changing this value doesn’t fix your problem you need to check that your installation meets the following requirements:
1. Nagios is installed (preferably built from source!)
2. NDOUtils is installed
3. The NDO/Nagios database has been created and is accessible by the nagios db user
4. The NDO-daemon (ndo2db) is running
5. The settings for database name, db user, db password, log files, socket, buffer files, etc. are configured correctly in all configuration files (i. e. the values are equal)