Im runningi a system using a dozen n6 using a dante audio network.
I've been struggling for a little while with packet loss on the receive side of some of the dante cards and I've been fixing it by swapping in replacement nions or dante cards.
After being away for a while I've noticed today that along with the reported packet loss, some of my nions are stopping their roles.
I've been getting error messages something like:
poke peek driver exception waiting for RXDF
and
audio module not found waiting for HF2 to go high
Any tips on troubleshooting this?

I just saw this last week too: the error indicates that the NION can't see the Dante module.
Didn't figure out why though - sorry.