Well 5pm is a bit late, what is the earliest we can start? As for today I can go but for 3 or 4hrs of play doesn't seem to much. I'm assuming it takes time to secure an area let alone the time it would takw to get there.
Have you tried a hard boot to the xbox? I find completely shutting it off will fix most problems. Make sure its off and not in sleep mode then try everything again.