WCC: Reporting tab, choose a report see 'No server defined'

Document ID : KB000110122
Last Modified Date : 14/08/2018
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Issue:
WCC was recently upgraded to 11.4 SP6.  
Choose the 'Reporting Tab', click on any report.
The screen shows: No Servers defined
Environment:
WCC 11.4 SP6 Linux
Resolution:
After choosing the 'Reporting Tab', the following screen was titled 'Data Collector' and shows a 'Collector Status' : Disabled.

Since the collector was disabled the Reporting DB was not getting populated with data needed for the reports.

To Enable the Collector Status: 
- Configuration
- Preferences, drop down choose 'Reporting'
- Check 'Enable Collector'

Go back into the Reporting tab, it will take a while for the collector to pull the data initially.  Once that completes reports can be produced.