We have an SQ6 with two DX168 in cascade. The DX168 were not connecting to the SQ6. We tried power cycling everything in different order and swapped cables, but nothing helped. I did noticed that even though the DX168 was set to Cascade, the Redundant LED was blinking. There had been a power outage since the last time it all worked.
We have a third DX168, for our outdoor stage, we swapped it for our first DX168 and everything worked. We then swapped them back and everything continued working fine.
Any thoughts on why this happened or better ways to troubleshoot this kind of issue or why swapping units fixed the issue?