@Marvin_S Hello, yes, this has already been done, it is a problem at the firmware level, what is scary is the lack of support from TP LINK, there are some posts here on the forum about this problem,...

It's been years, and the problem still persists in the latest update (DO NOT UPDATE, I REPEAT DO NOT UPDATE) > 1.2.9 Build 20230907 rel.96516: It's no good, it still has the problem of limiting the...

TP Link never again.. I have an Archer 5400 and I have the same problem, it's chronic, the brand knows but doesn't do anything to fix it.. I don't recommend TPLINK ever again.

@Obelisk3847 I can't send it here, as there is a 10mb limit, if you want, call me in PM and I'll give you the link

@Obelisk3847 I had the same problem, I went through everything to find a solution, even the last one released > 1.2.9 Build 20230907 rel.96516 is not working well to solve use this beta version >...

@CihanCo This work for me , a im use 1.2.6 Build 20220511 rel.37896 Archer C5400 https://community.tp-link.com/en/home/forum/topic/111869?replyId=458200