Search about "
ForceBindIP" in google. I think that's what you need.
ForceBindIP | r1ch.net And BTW, I'm using it right now.
I'm downloading a file using IDM through WiFi-1(My mobile hotspot) and watching a Twitch stream in Firefox simultaneously & separately through WiFi-2(my router which i connected with using a network adapter), without combining both internet connections.
Here is the link to the Tutorial: