Low level when measuring subwoofer

[RodimusPrime98]

I have used REW in the past to time align my multiple subwoofers with my miniDSP and my Yamaha A6A but when trying to measure my new Dayton Audio SS18 I am running into some configuration issues even beginning to measure the subwoofer. I keep getting low level warnings after checking the levels in Preferences and the levels being good, when I go to the measurement section the levels are much lower for some reason and I cannot get them to the appropriate level no matter what I have tried. I am not sure what I am missing this time. Even with the receiver turned all the way up to reference level the measurement still fails to be made with appropriate levels.

 

[John Mulcahy]

Looks like the input is all zero, usually indicates that access to mic inputs is not permitted in the OS.