Issue:
How to start and stop PowerChute Network Shutdown on Windows Server Core

Product:
PowerChute Network Shutdown Versions 2.2.3 and above

Environment:
Windows Server Core

Solution:

To start the PCNS service manually after it has been deliberately stopped, use either command below:

Note:  "n" stands for the instance number, if only one instance was installed n=1 Each instance was it own number PCNS 2.2.3, 2.2.4 and 2.2.5 can have up to 3 instances. PCNS 3.X and 4.X have 1 instance only so the entry is PCNS1. 

sc start PCNSn

net start  PCNSn

To  stop the PCNS service when it is running, use either command below:  

sc stop PCNSn

net stop PCNSn

To check if  PCNS service is running on Windows Service Core, use either command below: 

sc query PCNSn   #This command will only list the PCNS service and show if the service is started or stopped.

net start    # This command without argument will list all services running on the system.

sc query    # This command without argument will list all services running on the system.