Where to start?

[what bass]

I'm having problems running measurement sweeps. When I initially downloaded REW and hooked up to my pre/pro I was able to take a measurement. It wasn't much, just a low frequency that I took after following the setup thread. Measurement posted below dated Feb 22.

I then ordered a 15' active HDMI cable and a 15' USB A-C cable so I could reach my normal seating position. I ordered longer than I needed to future proof myself in most any situation I might want to take a measurement.

All settings the same, I tried to do a full measurement and wasn't able to get any sound to the speakers. I could however hear the sweep coming from the laptop speakers.
I checked my pre/pro to verify setup had not changed. I went back to the setup thread and followed it again. I then had problems with the Generator tab, green arrow wouldn't light up, and could not run a test measurement. It gave me a no output error.
I found "enable midi" was checked in comms tab under preferences. I unchecked it, restarted REW.
I am now able to run a measurement but I get no low frequency from my sub and sound comes from both my main speakers and the laptop. See below titled "c ear".

I am running this on an Acer Aspire 5 with Windows 10H. My gear information can be found in my avatar.
I really have no clue what to do or check next. I keep going back to setup thread and retrying step by step to duplicate my initial measurement. I have even switched back to the original cables I used for the initial launch when I was able to make this work.

If any brave soul would care to help me through this teething process, it would be greatly appreciated and Thank You in advance.

 

[what bass]

Literally, JUST figured out what I was doing wrong.
I had the output device in preferences set to default.
The devil is in the details.

 

[Sonnie Parker]

That will do it every time... glad you figured it out.