also check this: I set the RTS Threshold for both the 2.4 and 5 Ghz bands to 500, and set the beacon interval for both bands to 40

with ax 160mhz it gives me a negotiation speed of 2.4gb / s but a real download speed of only 700mb / s and an upload speed of about 150mb / s, (all this using an ax210 btw)

@Chris_FR I've been testing different setups throughout the day and came across a few tidbits. In my case, the download speed reaches the maximum only in a / n / ac mixed 160mhz mode *(900mb / s)*...

@Chris_FR i got the exact same results, did you fix it?