This is what I get in Whirlpool GUI on my laptop. Connection failed: Could not connect to CLI (may take a few seconds to start...) I was able to connect my samourai wallet to Dojo no problems.
Discussion
OK, great!!
In the samourai app, did you get the pairing payload??

Yes. However, Whirlpool GUI is a fucking asshole. It doesn't give me the ability to scan the QR code nor does it provide a field in which to paste anything. I still have the issue of no API for for Whirlpool CLI. If I click Show API Key, it tells me, "Unknown or not initialized - Please use Whirlpool GUI to pair your wallet first." I'm running around in circles and getting nowhere.
The problem is, I just deleted and reinstalled WP GUI and left it on 'Stand Alone' and in text it says it's downloading CLI 0.10.16, but there isn't a progress meter and I've let it sit for 30 minutes and nothing happens. I cannot get to the point you are referring to where/when I can enter that payload from my phone...