Try the "unicast" send method in the trio.xml.

I've been talking with Paul (Mr Trio), and there are clearly issues in the
broadcast /multicast space, and in the use of larger UDP messages. Some are software related, some are hardware, and some are just that some of this stuff is enough out of the mainstream of network usage that it isn't very well stabilized

"If it worked, we wouldn't call it high-tech!"

Expect some active updates in the next month or so, I'd guess.

-dB