All conditions bellow must be true:
1.- sapcontrol commands used by the upgrade tool fail with error:
FAIL: NIECONN_REFUSED (WSAECONNREFUSED: Connection refused),
NiRawConnect failed in plugin_fopen()
2.- The command is successful if executed with the host option:
sapcontrol -nr <instance number> -host <instance hostname>:5<instance number>13 -function <sapcontrol function>
3.- You have set parameter service/hostname to the instance hostname for the SAP start service.
SUM sapcontrol sapstartsrv FAIL NIECONN_REFUSED service/hostname , KBA , BC-CST-STS , Startup Service , BC-UPG-PRP , Upgrade Preparation , Problem
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