So it sounds simple, but I can’t figure out how to easily do it, what to search for, or what app to use.

Doing an internet speed test won’t do it as it’s ISP limited (at least for me - I’m not paying for gigbit+ internet.)

And your standard windows file transfer is tricky as I don’t have the right setup for it (e.g. i have a server, but it’s connected to gigabit port, so that would/does bottleneck it to 1000-1100, add to that the potential storage device on either side being a limiting factor (again, in my case).

I am running DD-WRT, so I have a bit more freedom that the average router firmware, if that’s relevant (though I don’t think it has network speed analysers).

I am just looking to see what the local bitrate/transfer speed is over my 5ghz signal is as a troubleshooting step for Meta’s shiddy AirLink (which appearently is only giving me ~10mb on a completely empty 5ghz signal with nothing overlapping.)