Hi @madfloyd – the email address you used isn’t going to work. Would you be able to post a link to the logs (like from Dropbox or similar), or do you need a way to upload them to us directly?
Can you also confirm the details of your system, both Core and the device having problems with the Fireface? Can you also confirm whether this occurs with all Firewalls on both machines turned off?
Finally, can you confirm your drivers are fully updated for the Fireface 400?