KPortScan is an IP and port scanning utility primarily used for network reconnaissance. Its core purpose is to probe a list of IP addresses to see which specific ports (like 80 for HTTP or 22 for SSH) are open and accepting data.
Use Windows Task Scheduler to run this every night at 2 AM and email you the log. download kportscan free
To find all active devices on your home Wi-Fi: KPortScan is an IP and port scanning utility
: A fast, cross-platform, and open-source network scanner. and open-source network scanner.