With IPHost Network Monitor you can run WMI System Up Time monitoring of various devices in your network.
To create a WMI monitor for System Up Time, provide host name (it must be a Windows host) and specify custom WQL query:
System Up Time is the elapsed time (in seconds) that the computer has been running since it was last started. This counter displays the difference between the start time and the current time.
The System performance object consists of counters that apply to more than one instance of a component processors on the computer.
IPHost Network Monitor is an advanced and easy tool for monitoring LAN and WAN networks, network servers, workstations and TCP/IP devices. Use IPHost Network Monitor to monitor your servers, domains, computers and devices.