I have been scanning the forums and it looks like I am facing the unexplained "capped at 100 Mbps" bug. Except for one guy who figured out if was his cable, there isnt much. I have checked my cables and they are cat6.

I also checked the AX23 negotiated ethernet status and all points to 1000Mbps.

Still confused where the issue could be. 

thanks

anand

Hi  @araman,

 Here are some tips which might improve the speed of your Archer Router:
    1) If Ethernet speed is slower than expected, please try different Ethernet cables (CAT5E or above) on the Router.
    2) Disable QoS, please access http://tplinkwifi.net and go to Advanced >> QoS to disable it.
    3) Disable Parental Control, please go to Advanced >> Parental Control to disable it.
    4) If wireless speed is slower than expected, please go to Advanced >> Wireless Settings to change the 5GHz Wi-Fi channel, you may try different channels to find the best one for your environment.
    5) Disable SIP ALG and UPNP, please go to Advanced >> NAT Forwarding >> UPNP to disable UPNP, go to Advance >> Security to disable SIP ALG.
    6) Try a few other speedtest servers, other servers might reach better speeds.
    7) Reset the router and configure it again.

  @Joseph-TP thanks for the tips. I regret to inform that it is an issue with AX23. Over the past few days I have plugged in TpLInk ER605 gigabit firewall router and I am able to see speeds of 900+ Mbps at one of the ethernet ports of the device. Everything else in the setup remains the same. 

I have also plugged in a few other competitor products over the past few days and I can see speeds in the 800+ range on the same cable and only changing AX23 in the equation. 

Based on this I would like to think that the issue is with the AX23 in some shape or form. I am unable to do further investigation. 

I do comment the TP link team for creating a good interface and a unified design language which makes it easy to work with most of the products. Keep up the good work. 

Thanks

anand

 Hi @araman,

Thanks for your reply. If you have tried my suggestions but the issue persists, it seems that the router has some issue. It is recommended that you can contact local support for warranty consultation.