Archer AX3000 Pro - Low Wi-Fi 6 Speeds
Hello All,
I am trying to improve my Wi-Fi 6 speeds from my Archer AX3000 Pro. I purchased this router from Best Buy in September of 2022. It has been much more reliable than the Netgear Nighthawk RAX120 router it replaced.
I have a total of 8-9 clients on the entire network, across wired, 2.4g, and 5g connections. My wife's PC (also referred to herein as PC #2) is connected over the 5ghz SSID and receives less than 100 Mbp/s with a full-strength signal, about 10-15 feet away. Bringing her PC closer to the router (about 3 feet away) brings download speed near 150Mbp/s. Still not what I expect from Wi-Fi 6. We do live in a condiminium building with many other SSIDs nearby. To avoid congestion I have switched the 5ghz band to DFS Channel 124 with 160 mhz channel width enabled. There appear to be no other SSIDs nearby using this frequency range, checking with a freeware Wi-Fi analyzer app on my phone. This has not improved speeds.
Testing with a Wi-Fi 6 client a few feet from the router, with direct line of sight results in ~150Mbp/s being about the peak download speed I ever see while testing. This is an okay speed for web browsing and other light tasks, but I'd love to find a way to get closer to what I read Wi-Fi 6 speeds are really supposed to be.
The main two Wi-Fi 6 clients I test with are my wife's PC, which I have custom assembled myself which includes a Gigabyte motherboard that has an onboard AMD RZ608 Wi-Fi 6E adapter module with external antenna. The other Wi-Fi 6 client I use for testing is my Samsung Note 20 Ultra. I have seen near-1000 Mbp/s second speeds over Wi-Fi 6 on my Note 20 Ultra when I still had the Netgear Nighthawk RAX120. But that router had overheating/rebooting issues, hence the replacement with a different brand of router.
Below I will list things I can remember trying to improve speed thus far.
Unbind router from TP-Link cloud account.
Delete Tether app from my Note 20 Ultra.
80mhz channel width/160 mhz channel width.
Put PC #2 within 3 feet of router.
Update firmware on router.
Most current AMD RZ608 driver from Gigabyte website.
Looked for QoS settings, none found.
Patched PC #2 into LAN port #3 of router. Over 900 Mbp/s on Speedtest(dot)net, same as PC #1.
Windows is up to date on PC #2.
PC #2 BIOS on most recent version.
And finally, here is a crude diagram of my network map.
xFinity 1.2 Gbp/s DOCSIS 3.1 ---> Netgear CM2000 cable modem ---> TP-Link Archer AX3000 Pro (2.5 Gbp/s WAN port) --->
LAN: My PC, Philips Hue Bridge;
2.4ghz: ElGato Key Light Air, Hatch Rest+ sound machine, Wyze baby monitor camera;
5ghz: My Note 20 Ultra, Wife's Note 20 Ultra, Samsung Smart TV, Wife's PC
I appreciate any help I can get to improve the performance of this router.