I am playing with XE7 example Tethering>DesktopCast

I am playing with XE7 example Tethering>DesktopCast
But its not working on my nexus 7.  FMXClientTetherDesktop installs correctly on Nexus 7, but its not able to connect to VCLTetherDesktop.

But When I change the platform of FMXClientTetherDesktop  to 32 Windows, it works good. Also VCLTetherClient1 works good too.

Any idea what am I doing wrong?

Thanks.