Massive speeddrop on Series X using TP-Link AX5400 (Archer AX73 v2.0) WiFi WPA2/3 Mixed and...

Hi all,

Because of personal reallocation necessities I'm forced to use a WiFi connection for the Series X. I'm on the Beta ring and I'm on the latest xb_flt_2406zn.240612-1410 OS version. Thankfully my 1Gbps fiber connection has moved with me but I'm missing my good old Cat6 cables to get stability etc.

The thing is when I connect my Series X to my SSID using WPA3 only I get the message that I'm not using WPA2, WPA3 or any compliant security version to secure the interweb waves flowing through the apartment. My Macbook connects perfectly and I get a stable 900+Mbit throughput over WPA3 in the same room the Xbox is situated. When I change to WPA2/3 mixed the XB connects but instead of presenting me with speeds compared to the Macbook (which is still clipping at say 925Mbit) the XB reaches a terrible all time low of 100Mbps on 2.4Ghz and 235Mbps on the 5Ghz channel. When I put the SSID in mixed mode 5Ghz is used hence 235Mbps is presented during a speedtest. You can do the math for the 2.4Ghz channel and 5Ghz channel and it makes me cry a bit purely because I don't understand what's going on.

I've tried to change the booster settings of the router from everything on to everything off and everything that's in between but I can't get the XB reach higher throughput. That are option like OFDMA/MU-MIMO enabled/disabled (this option greatly enhance the stability and throughput), Smart Connect is like Mixed mode 2.4/5Ghz combined and some other stuff but on or off, it doesn't matter.

Latency values seem quite alright, 9 ms which isn't bad at all. Wireless strengt is 100% but packet loss states 100% after every single connection check.

I've read threads started nearly 4 years ago stating trouble with WPA3 or mixed mode issues and in lots of these threads there was an answer that there was work in progress but no solution or something where I remotely can think of that I can change to get the gaming router get its juice flowing to the Series X. I really don't understand what I do wrong here or if there's something I overlooked. Why are all of my devices, like my Samsung Tab S7+, IPad Pro, Macbook, Samsung S20 and S24 Ultra, etc. hitting much higher throughput and does it look like my Series X is partying on some sort of massive throughput throttling fest.

Is there any explanation I didn't read about maybe, I truly searched. I really find it strange that the XB is complaining about WPA3 not being recognized here. WPA3 is WPA3 so why would my Series X state that I'm using something different than WPA, WPA2 or WPA3? Why does mixed mode work but is my throughput 4x lower on 5Ghz and 9x lower on 2.4Ghz than on other devices? Am I the only one here or is it (still) a known something? I already send in 2 reports (both using Other - Other due to a problem with the reporting tool) so my tech info should've reached where it needs to be.

Please let me know if I can send more information, I will gladly be of any assistance here to figure out where I need to look or what I need to change or fiddle with. I really like to thank everyone upfront who are going to give any input. Unfortunately my answer or response can take a bit because of a brain and body condition. Sometimes it takes a day or 2 to get me rebooted again so no worries, I'll be back.

submitted by /u/SyntheGris
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