How to test speed between router and modem

[luckycharms]

A quick search says this might be the "Killer Wi-fi 6 AX500-DBS (2x2)" card, but you probably should reply with what you actually have...

Yep, this is the one I have. It's a bit of an odd model with Qualcomm chips I think, but anyway...

Also, it's important to know how far away you are from the router. Distance makes a HUGE difference in throughput on 5GHz. I'm sitting about 10 feet from my router, with clear LOS.

Even closeby, my transfer speeds are quite low. Importantly, I think, even with an ethernet connection, I still drop around 150 Mbps of what I would get by connecting to the ISP's router/modem directly. That makes me think that the AC88u is a bit strained.

I'd be curious to hear what the experts think would be a good unit to run diversion + skynet + TM not being a bottleneck to the 900 Mbps WAN speed...