In wireshark, I see the SSDP search from the Xbox and then when the Xbox tries to access it, the computer replying to the console with a Server Error 500 containing "Access Denied" and I think it's because the computer can't see the console. I can ping it though. When I put the computer on the same wireless as the console, then open the Network folder and hit refresh, the Xbox pops up along with other things on wireless (Roku, etc) but when the computer is wired, it doesn't see any of those, so I think something about the SSDP packets isn't working quite right between subnets or with pimd. My guess is the SSDP search from the computer isn't getting to the wifi, only vice versa.