To access Windows Services using SMT you need to use AD user id which has access to windows services (start/stop) . To start and stop user id should be part of Administrator group on PI server. To monitor PI server i would recommend PI Perfmon interface PI Server or PI Connector for system health.
Thank you for your post
In fact it was firewall issue, no access on server to %PIHOME%/d$/adm/pisrvstart