https://www.paessler.com/Download_PRTG/PRTG_Freeware
AdKeep an eye on device status, load, traffic, signal strength, last access etc. with PRTG. PRTG warns you of potential disruption to your WiFi. Get prompt and customizable alerts.
Trusted by Fortune 400 · Easy and fast setup · All in one dashboard · Integrated Ticket System
Service catalog: Network Monitoring, Bandwidth Monitoring, Server Monitoring