Problems sync Mares Nemo with Iris

[Viti]

I have e Mares Nemo and i sync it with a Mares Iris.

In the past everything was working good but now it does not work any more.
In the past, wen i clicked the sync button the light on the iris flash...now it does nothing.

please help me.

thank you very much

system:
macos Sierra 10.12.3
Mac Dive 2.8.1
Newest Silicon Labs USB Driver

[nick]

Sounds like a problem with the IRIS itself? Unfortunately I can't really help you with that. You may want to talk to Mares.