Finally got it. When I updated Windows for some reason I couldn't get the internet through my router. I could get through with a hotspot off my phone, so I knew it wasn't the computer. But I forgot what I set my router info to and had to do a factory reset and reconfigure everything. After that I got internet but ran into this connection issue with IL-2. Considering I could log into the game I figured it wasn't a computer firewall issue (after pretty much eliminating it as a variable in every way possible) so I went into the router and disabled the firewall there. Ta-DAAA! Boom, I'm in.