If that AQ is a Cat 8 which it may be try swapping it out for a Cat 6 . I had a problem where my DAC would not achieve digital lock intermittently with my Aurender and Vault 2 when they were both on.
Drop outs , stuttering as it tried to lock on. Removed a Cat 8 cable from the Aurender and swapped it out for a Cat 5e and problem seems to have gone away
Someone on this forum suggested that was my problem, the metal connector of the Cat 8 can cause grounding issues between components. I didn't believe it until I finally remembered what he said and swapped that cable