Partner not reached (host <host name>, service <service number>).
Partner not reached (host <host name>, service <service number>).
The SAP BW Service is unable to connect to the SAP NetWeaver BI system specified as GWSERV in the saprfc.ini file. This error originates in Common Program Interface-Communications (TCP/IP) on the local host.
Change the GWSERV entry in the saprfc.ini file to point to the server on which the SAP NetWeaver BI system is running.