Thanks for the reply to my previous question, it made it possible for me to make some Max patches to control ArtNet and program the stuff I wanted to do. I'm was working on a project to control multiled tiles from Max/Jitter on a Mac.

For two weeks now I've been in the possession of an Artistic License Ether-Lynx O/P interface, and well.. it's a bloody nightmare !!
I have tried everything to get it to work, but it won't, talked to many people, talked to the nice guys at artistic license, but so far no solution.

My time is running out now, I have a week before my show and I still haven't been abel to run any tests with actual lights on. I'm seriously considering to send back the unit and go for a less optimal solution (the LanBox from CDS in Holland, they are mac and even max/jitter-friendly), but which would give me less dmx-slots for the budget I have.

As a last attempt I want to describe my problem:

I power the unit, the led's do their chase thing, the red one is on.
I connect Ethernet, but the yellow one does not come on, whatever I try. I've tried all possible settings, powering up sequences, with crosscable, with a hub, etc.
At times (during a few minutes after power-up) my mac thinks there is a network, hubs tend to agree, but the unit apparently never thinks so...
After a couple of minutes the led's go back into their chase mode (if they ever got out of it in the first place).

It took me a while to discover that this means that the problem is probably not in the packets I send, but that it is more basic than that: there is even no network.

my understanding is the following:

computer settings:

IP: 10.0.0.1 (yes, I put the alt-net jumper in the unit, also tried 2.0.0.1 without the jumper)
subnet mask: 255.0.0.0
no DNS or router adresses
ethernet manually configured 10BaseT/UTP half-duplex, 1500 max packet size (also tried automatic configuration)

I use a cross-ethernet cable (or a hub, tried all other combinations too).
Power comes through the 4pin XLR, not the ethernet connector.

What on earth can be wrong with this ?
Is there a magic trick which suddenly will make it work ?
Is there a some subtle develish difference between ethernet on mac and pc ?

any (speedy) magic much appreciated.

regards,

Joost.