[elliottcarlson]

Would one possible solution be to show a random word on the screen and add that as part of the authentication request? This would allow it to pair up with what you currently see on the screen and keep it simple enough where IP address or other technical details aren't required to be known.

[tiziano88]

I like this idea, it's similar to what modern tablet and phones use for Bluetooth pairing: instead of asking to enter a number on the other device, they just ask you to check whether they match up.