wifi speed is 5x faster on linux than win10 using same hardware

Just signed up for t-mobile 5g at home which comes with a Sagemcom Fast 5688W gateway and was pleasantly surprised to get 500mbps download speeds with a wifi-connected iphone 2020 SE. Figured I would get the same d/l speed on my main win10 computer which has a tp-link AXE5400 PCIe wifi card, but am finding it only gets 100mbps d/l. Works fine, just slower d/l speed, would like to figure out why. Firewall and AV were disabled btw. Winver is 22H2 (OS Build 19045.2913)

Next step was to boot that main computer to linux from a usb drive. From the linux desktop it got 500mbps download speed (using fast.com). So same hardware but different OS, 5x the speed.

Next I used Intel Device Assistant which updated the wifi driver but did not change the speed, still 100mbps down. Troubleshot for an hour and cannot figure it out, but one piece of data that may be important is the network troubleshooter comes up with errors. I'll attach those images below plus the "detailed information" from the troubleshooter in a txt file linked below. It references a "wireless connectivity information event" for more info but I am not sure where to find that, did not see it in event viewer. Thanks a lot for any advice! !

log.txt - Google Drive

dalchina said:

Hi, I'm not going to try to answer this as such, but just give you a pointer... I recall this has been seen and commented on elsewhere in tenforums, so please try searching tenforums for threads on this topic. Good luck.

thanks for responding. Can I ask what you are referring to when you say this has been seen? I've searched here on t-mobile, sagemcom, network troubleshooter, just not sure what to search for. Thanks again

dalchina said:

Hi, try:
Slow internet speed on Window10 but it's fine on Ubuntu

Google search:
w-fi faster with linux site:tenforums.com
or
wi-fi slower than linux with windows site:tenforums.com


Sorry- I can't add anything personally as it's not an area I've needed to look at particularly.

thanks a lot, first link said to issue "netsh int tcp set global autotuninglevel=normal" which fixed the problem! Somewhere in the 5-year history of my win10 image I must have disabled auto-tuning.

I’m connecting on the 5ghz band