First, be sure to read the Axient manual. There are several network ports and several settings that change the functionality/roles of those network ports (redundant, switched, control, etc). (Honestly the same can be said about the SQ’s Dante card as well. Read the manual).
Second, have your properly routed the Dante audio using Dante Controller software? It’s not as simple as plugging the Axient device into the SQ’s Dante card. You also have to route the audio in the Dante Controller software.