Mining Rig Control is a free app that can monitor main parameters of computers
Bitcointalk page
https://bitcointalk.org/index.php?topic=5044637.0
Windows application available at GitHub repository https://github.com/RigControl/RigControlDesktop/releases
Mining Rig Control use the Open Hardware Monitor library (http://openhardwaremonitor.org/).
The Open Hardware Monitor is a free open source software that monitors temperature sensors, fan speeds, voltages, load and clock speeds of a computer.
Mining Rig Control allow you to monitor your rigs/miners stats and get notified when rig goes offline, rig is idle or GPU exceeds threshold limit. There are no ads in the application and application is full free ¯\_(ツ)_/¯
Don't forget open port at your router