Changing the "Internet Port Negotiation Speed Setting" from "Auto Negotiation" to "1000Mbps Full Duplex" did the trick for me, now I get the >700Mbps from previous 100-250Mbps dl speed. It looks like the modem is slowing down the router with lower WAN speeds if it is set to auto negotiation for some reason.

For my Archer AX50 v1.0 Firmware 1.0.9, the setting can be found in System Tools -> System Parameters -> scroll to the very bottom to "Internet Port Negotiation Speed Setting". And you need to switch to the Advanced tab of course.

Cheers,

Pascal

@David_vt deleted the app off my phone, reset the router......BAM! Finally getting the internet speed I'm paying for!! After months of frustration, thank you!!

@Carl did you not read the thread?  It's about the fricking app that kills your router?

My last experiment with tp link. I guess you guys get paid even if the router goes in the dumpster. 

@JimAllyn 

That is not what the thread started as.  It stated with poor LAN performance.  

"Hello, I just purchased a AX50/AX3000 router and am having a terrible time gettingt the LAN speeds to be good. My other router was a Netgear and I was able to confirm that my WAN/Internet speeds are 500/250 from my ISP. I am getting close to that on wireless when I am right near the router. However, with the AX50 I am only getting 60mbps down and 40mbps up. I've tried everything including mimicking my settings from the Netgear router. Could this be an issue with my devices (iPhone and Macbook Pro) not supporting AX?"

Also we have found from some users that not the App but the HomeCare feature, specifically QOS, is what is causing the concern.  What they reported is that if you delete app and reboot the router that preformance does improve.  Our R&D team has futher stated that in connections above 300 Mbps QOS is not beneficial.  We have also had reports that are still be tested that putting the router on a cooling plate or on a stand that angles the router and allows better airflow can improve perfomance.  We know this router's particular chip does run warm but it should not affect the perfomance.  If we get more on this we will let our users know. 

@Carl 

It´s quite clear that the trigger for traffic choke with this router are:

• Using QoS (easily reproducible scenario)
• Using Device Priority easily (reproducible scenario)
• Using the App it may trigger some strange behavior as well.
• Also important, the traffic monitor doesn´t work without QoS or Device Priority (reproducible scenario)

So we have 4 clear point of action for your Product Line and R&D. Frankly I think there is not going to be an upgrade to the firmware of this router to fix any of the problem ... that intel chipset may be the guilty of that. 

@Sevi I've spent so much time on the phone with TP link diagnosing this router, and the slow speeds always seem to return.  No wonder this AX3000 router is cheap to purchase.  Not worth the time spent on it, and having to smell the electronic fumes it puts out as it runs so hot.