I looked at the router's setup (
http://192.168.2.1/index.htm) but can find no section for connected devices.
http://192.168.2.1/lan_dhcp.html is where it is on my particular router. But depending on your router model it may vary.
with a belkin you look under use the link listed in above post LAN > DHCP Client List it will show you every device using yoru router.
On the side menu under 'LAN Setup' there is a button labelled DHCP Client List. This will display your IoT connected devices. This worked on 192.168.2.1/index.htm but you need to click DHCP Client List for it to show.
Search for 'DHCP Client List' from the many options available in
192.168.2.1 (depends on your router).
Note: You might need to log in to your account if you want to see the list. Default password will be blank(depends on your router) Then you will see a list of available devices with their IP address, Mac address and device name.