This is a tool from Valve for identifying issues with the dongle when streaming from Linux PCs.

Nice, will try that!

Nice. I still haven’t been able to get mine to connect.

Edit:

this shebang makes it work with nix:

#!/usr/bin/env nix
#!nix shell nixpkgs#iw nixpkgs#firewalld --command bash

also I think it might have helped:

PROBLEM:REGDOMAIN: Your regulatory domain is set to 00 and using the DFS-UNSET rules set. Set an appropriate regulatory domain for your location.