So I've been playing with a friend for a while with no issues, but i can't play with my roomate who uses the same modem as i do via ethernet cables. My roomate and I can match with others just fine, we just can't join the same match together. it says either connection failed (1-2) or in progress when we click begin match. Doesn't matter who hosts, if him, me or someone from outside.
Anyone had this issue? Remember, I can play against anyone except for my roomate. So my version is fine, my internet is fine, firewall is fine. Everything works EXCEPT against this one person that shares my modem.
I could try lan but that'd exclude whoever is not in my house. That wouldn't help.