@JoelS Hi, well no. The solution was to disable AX on both bands... so the router is closed in the box as useless junk. I purchased an ASUS AX11000 and works perfectly... TP-Link was a true...

@djviko @Carl Hi Carl, was my reply ok? with the details I provided, will you be sending my questions/comments to the software team? I am here if you need any further details, thanks!

@Cali88 Hopefully someone from TP-Link support can answer to your inquiry so it can get fixed... sorry I was not on the correct path to fixing your issue... good luck with that!

@Carl Hi, thanks for your response... I have at the most 20 devices connected to the router (only one of them is an iPhone 11 Pro which is the only AX enabled device I currently own) mostly the...

@Cali88 Did you put back the 5Ghz channel to Auto selection? Are you sure your device where you are testing speed is connected to the 5Ghz band or are you doing the speed test directly on the router?...

@Cali88 Hi, I also did exactly the same.. purchased the AX6000 to replace my C5400 and was experiencing the exact same issue. What I did (and as far as I can tell since I just made this change...