I am dealing with the BIOS error as well. And we have a medium to high population, and all of a sudden there are only 8-10 players able to play on Xbox server at the moment. I've Uninstalled, restarted game, refreshed servers and no matter what I cannot locate a single server due to BIOSE Error (0x00050017) Communication error, resource unreachable or unavailable. ([GetServers] : 0x800C000B)