@routersolute That's correct. Onemesh can only work when the router is working in Router mode now, you can check the Q8/A8 in the below article: Several questions about the OneMesh and Mesh

@Cincai.La I honestly don't suggest flashing 3rd party firmware on the router to confirm the issue, I would like to escalate the case to the support engineers, they will look into it.

@clop1000 That's weird. We would like to escalate the case to the support engineers, they will try to investigate.

@quinzero Hi, the issue you reported is different from the OP in this thread, and I have replied to you below: https://community.tp-link.com/en/home/forum/topic/257504?replyId=1019370

@quinzero @benettonb1 Hello, have you checked my original post in this thread? Please confirm and disable QoS settings on the AX50, then confirm. You can also check that Avadon did resole his speed...

@Cincai.La Does the computer connect to the Archer C6 wireless network or via LAN cable? Which network if wireless? Please check the DoS Protection setting on the Archer C6, is it enabled? You can...