Certificate and everything else will come later. To put this into terms you may Understand...
72.238.27.146 is your Public Address, and the 192.168.x.xx is your internal address. one cannot talk to the other unless you make a routing table modification, which is out of the scope of this forum.
Forget about everything else, make sure your W10 machine is set to DHCP, that you can see the Network, and have the correct security key.
From what you have written, I dont even think you are on a wifi network, coz that IP address is not private.
K