Then, re-register the service (if corrupted):
sapstartsrv.exe -regsvc -p <profile> -noreg -trace Check service unit file: cannot connect to service sapstartsrv
ps -ef | grep sapstartsrv systemctl status sapstartsrv_<SID> If it’s not running, start it manually: Then, re-register the service (if corrupted): sapstartsrv
sc query sapstartsrv_<SID> or look for SAP <SID> System in Services.msc. If it’s not running
sapcontrol -host <hostname> -nr <nr> -function GetProcessList If that works but -host localhost fails, check your /etc/hosts (Linux) or C:\Windows\System32\drivers\etc\hosts (Windows). Navigate to: C:\usr\sap\<SID>\SYS\profile\ Open START_<SID>_<inst>_<host> and ensure SAPLOCALHOST is correct.