Hello guys, im new here this is a stable firmware? I had trouble my local network is really slow maximum 15mb/s i got when i copy files to my laptop.

I had tp-link ax5400 before i got 50mb/s. I thought this router makes faster and i replaced this ax6000. I leaved qos default. I only bought this router to stream movies from my nas to my tv. I dont had really good internet yet. 30/20 mbps i have. Can somebody help why i got slow speed and always disconnects some wireless device.

i want copy in local network big iso files its only can 11mb/s the tp-link ax5400 can 50mb/s.

I dont have any issues with tp-link ax5400 i thought ax6400 better maybe i did a mistake. :(