I just switched from RCN to FiOS Internet.
I was able to add my Xbox to the devices (Microsoft Surface), but currently my MS Surface don't see Xbox.
The XBox directly connected to the WiFi router and my surface is connected wirelessly.
Maybe I should enable something on my router, but I could not find what exactly.
My PC (Windows 😎 connected by the cable and can see Xbox.
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I have just one router.
My PC and Xbox connected directly by cable to it and my Surface wirelessly.
Maybe should try, instead of connecting by cable, to connect the XBox thru WiFi, to see if it will be discoverable, but I want to have a stable speed on my XBox, because I watch a lot of movies on it.
Wirelessly, in ideal situation (couple feet) I have about 30/25 speed, usually it's just 20/15
Oh, man thanks a lot! I spend a whole day of trying to figure out what is wrong. I improved the performance of my Internet and I worried that I touched some other settings, which blocked discovering my XBox.
I found more info what is IGMP proxy here - http://forums.verizon.com/t5/Home-Networking/Apple-AIRPLAY-issue-w-Acontech-Router-IGMP-Proxy-needs-...