What was the problem with the Qlik SAP Extractor Connector v6.3.2 ?
Can you attach some log files that show the issue with the connector and Qlik Network Server (QNS) ?
The logs are located in this folder:
connector log should be like: QvSAPExtr_20171205_134548.txt
QNS log looks like: SrvService_20171205_094843.txt