Sorry.. your screenshots are showing some hacking links in the favorites and i'm not playing with ! try your tp-link update from another PC/OS no ?

did you try another file firmware older ? what's the name of file & size & date ?

unzip the file before ?

disable all your security your router is made for ?? check your www latency different hours of day .. change ISP for a pro connection up/down and play the good hours with nearest game servers !

waiting for answer by technical tp-link support .. they are working on , thanks

On my WR841N disabling wifi on the rear unit cause ethernet machines loss packets for 4/5 sequences of ping leds are turning off and on beetwen 2 sec. don't know why