MHR can only be used between 2 Meridian products. Did you save the new settings during changing 96k MHR etc. in the 800? Mconfig doesn't work in real-time.
I am so bad at posting huge posts, and yet never giving all the necessary details lol. Gawd I suck hehe.
Each time I checked or unchecked a box I would save and then store it on the 800 and then test. So uncheck 1 box for 96k, save, store, test. No sound. Turn off MHR, save, store, test. No sound. I definitely know that MHR only works with Meridian gear but since nothing was working at all, I decided to try every possible combination.
Interestingly, I found a post from myself from 19 years ago about this same thing. Trying to get it to work in my Theta Casablanca (which I still use today). The problem is matching those settings do not work today. 800 is same firmware version so there's no changes there.
I am going to post screenshots of the configuration software and the relevant screens to show my current settings and see if anyone notices a mistake I made.
Thanks!
M