Kind of an odd problem here.

Mezzmo is not showing up on my TV (Samsung E), but working fine on my phone.

So in desperation I installed Mezzmo on another computer (XP on vmware), that showed up on my TV right away.
Is there something in Windows 7 64 that can block Mezzmo?

I have the firewall disabled.

PS this problem seems to have gotten worse with the last two updates...