Try using psexec. https://learn.microsoft.com/en-us/sysinternals/downloads/psexec
psexec \\192.168.178.226 -u Administrator -p mypassword -s taskkill.exe /im Cluster_Manager.exe /f /t
The -s switch says to run the remote process as the system account. If that doesn't work, then you have something else going on.