Xbox One Backwards Compatibility Issue

Hey everyone, I have a frustrating problem, and Microsoft has been no help...thought I'd post it here.

Whenever I play a 360 Backwards Compatibility(BC) games I will randomly get disconnected from Xbox Live, but only on the 360 end not the Xbox One(XB1) end . Here are some notes for the smart types:

-Its not isolated to one game because it happens to me on Left 4 Dead 2, Gears of War 2, Peggle, COD: Black Ops, AND MORE.

-Not my connection because I remain on XBL on the XB1 dashboard. Also, my other devices stay connected. -Doesn't happen on XB1 games....ever -Happens when I'm in a party on XB1 and 360. Happens when I'm not in a party.

-My download is between 50-100mbps, Upload is between 15-30mbps

-I'm on a wireless signal, 100% reception. Switching to a wired connection soon to try that (doubtful).

-I forwarded the necessary ports required for XBL according to Support.

-I've taken down the firewall on my router.

-I have deleted the games and reinstalled them.

-I have deleted my gamer profile and re-downloaded it on XB1 and 360.

-My NAT type is OPEN.

-Doesn't matter if its on disc or not. I actually purchased L4D2 digitally even though I own the disc to try and alleviate the issue

Thanks for your help!