New Router - Gaming Issues

I recently set up a new Panoramic modem/router on 7/5. Initial setup was rough with trying to hook up the TV to the network for vudu/netflix purposes, but that's probably not relevant. As of this morning, I keep getting booted out of an online game (attempting to join Minecraft Realms). There was no problem at all yesterday 7/6, but today i am receiving an error - looking at the game's forums, it was recommended to disable NAT acceleration. However, when i log into the router, i do not see that option in Advanced > LAN as others have said. i think i saw something else that said to enable bridge mode, or something, but that then says it'll take down the whole wifi functionality, which is just unacceptable for the rest of the household. I could use any insight into the router UI - perhaps i'm looking in the wrong spot? Or, if this isn't something i can change on my end i'd like to know how to get this resolved if possible.