I've been having issues with a brand new Halo 4 console. It seems to lag terribly at several places. When turning it on, it will often hang on the startup screen. The green animation in the "X" on the logo will stop. From there it takes several minutes to get to the dashboard. Signing into Live generally takes 5 minutes or more, and I'm doing that with a wired connection since I had the luck of having a modem/router that appears to not play nice with the wireless adapters on the slims. Loading screens in games take several minutes as well. The system just seems to run like an old computer. I don't know what to do about it.