List of workstations

I think that you need to check the connections to the port of the Server, take a look to this web:

https://mkyong.com/linux/list-all-ip-addresses-connected-to-your-server/

• Namespace %SYS
• class SYS.Process is your friend
• SELECT * FROM SYS.PROCESS
• in your case :  
  

  select CurrentDevice from SYS.Process groupby CurrentDevice

  CurrentDevice
  //./NUL
  |TCP|1972
  |TCP|1972|7868
  |TCP|1972|7104
  |TCP|1972|19332
  |TCP|1972|9316
  |TCP|1972|12932
  |TCP|1972|17224
  |TCP|1972|8096

  10 row(s) affected

• .
• for more details
  

  select Pid,CurrentDevice,ClientNodeName,ClientIPAddress  from SYS.Process 

   

USER>w $ZV
Cache for Windows (x86-64) 2018.1.7