I am using an ASUS RT-AX88U router and a Samsung Galaxy S10 to transfer 802.11ax packets. Using iperf3, I can get speeds of up to 900 (!) Mbps.
I use a laptop with an Intel AX200 chipset put in monitor mode to capture these packets.
Unfortunately, I can only capture a very small percentage of all the packets that are being transferred.
Note that I keep the laptop next to the sender (router) which was the best location to capture 802.11ac packets (which I have been doing as well and very successfully).
I have made sure that I am on the right channel with the correct channel width (I set the router to 80 MHz and then the interface in monitor mode to 80 MHz as well). Also, all packets I capture are 802.11ax (HE) packets.
For some reason I can capture all the packets when using the Netgear Nighthawk RAX80 router (But I only get a maximum throughput of 465 Mbps, roughly half of what I got with ASUS, though that could just be a Netgear firmware bug). With the same setup though I capture like 5% of the packets with the ASUS router.
Also, I see packets from MCS 8 to MCS 11 (256-QAM and 1024-QAM packets).
Anyone else who has come across this issue?