To remotely control other machine's bandwidth with NetLimiter 4 you must meet following conditions:
To allow NetLimiter 4 (on remote machine) to listen on TCP port 4045, go to
Tools->Options...->Service->General and check the
Listen for remote connections option. If you need to change the port value you can do it here as well (custom port numbers work since version 4.1.7).
If all conditions are met then go to
File->Connect remotely..., enter an IP address or a network name of a remote machine and click on
Connect. Then you will have to enter credentials for your admin account on the remote machine.
After successful login the remote machine will appear in Activity view.
If you have selected a custom port (other than default 4045) on the remote machine, then you need to specify it in the name of machine: MachineNameOrIp:Port (for example: 18.104.22.168:8088).