I have deleted the logical system QTQVCEXTR1 and its corresponding RFC connection in SM59.
Thereafter recreation of this system.
Now the extractors are given in Qlik, but the data loading / execute script ends with an error:
LOCATION CPIC (TCP/IP) on local host with Unicode
ERROR hostname 'sapbwas04' unknown
TIME Tue Nov 22 13:59:52 2016
COMPONENT NI (network interface)
DETAIL NiHLGetNodeAddr: hostname cached as unknown
SQL EXTRACTOR 80EPM_DS01
Are you using release 6.3.1 or 6.3.2?
The 'Test connection' in transaction SM59 is not going to give a positive result if no extraction is taking place at the time. So if that was the case the error is an expected outcome.
At the bottom of the screen in transaction SM59, Gateway Host and Gateway service is displayed. Gateway Host and Gateway service are used when the Extractor connector registers the connection to SAP (before it can receive data). The entries are created when the Logical system is created or modified in transaction /n/QTQVC/EXTRACTOR_ADM. Please check if your entries are correct.
Read more about this under the headline 'Modify' in the online help: