It is connecting to it, but the connection is being refused... (Eg, it is rejecting. It can't "reject" if it is not connected. It is forcefully saying "No, I don't accept your access.")

Again, there is nothing that needs to be routed, it is a direct connection to the RasPi network-card. If I type 127.123.12.1 it goes there. Routing is just re-direction, I could make it so typing FROG would point it to 127.123.12.1 if I wanted it to. You didn't have to redirect anything, just type in that other IP. It is the router that assigns IP's. If hardware tells the router what IP it wants, and that is not one of the assigned IP's, then you have to ask it to forward any request for FROG to go to "whatever the actual IP is", or just use the assigned IP. (I know the actual IP, so that is not needed. In my case, the hardware is saying, "I can be contacted at 192.168.137.1", it is sending windows plenty of packet data, so something is communicating, or trying to. However, it is rejecting ports 80, 81, 443, 23, 22 {http/https/https2/telnet/SSH})

In any event, I assume the blinking lights are an indication that the hardware is not working anyways. Usually "solid green" indicates "Ok, running". Blinking is standard for, "Something is wrong"... even when it is green and blinking.