Send screens of the NICs from the Setup > Network and from the Volume Replication. Submitting a support ticket is done from our main website on the top where the User Portal login and password that you setup when you purchased the DSS V6.
Those look ok, now check that you take off any Unicast for the NICs in Failover, use the broadcast method. This document demonstrates the steps, most you know, just review the Failover steps. Also check that you can ping all and both ways.
http://www.open-e.com/service-and-su...-to-resources/
Open-E iSCSI and NFS Failover:
Open-E DSS V6 Synchronous Volume Replication with Failover over a LAN (broadcast)
I tried to post some screens herer, but i get a message, that a moderator has to check my post first...