@ryanbhp Thanks for reporting this issue again. Have you tried to disable the media sharing and printer on the A20? Which firmware are you on now with the A20? Can we have the detailed Big Sur...

@marcevm Hi Marcelo, thank you very much for all the details you've provided now. What if you change the Archer C9 to router mode, will it behave the same? What is the detailed network layout? May I...

@SSMP I see. It is suggested to try to modify the wireless settings as mentioned previously, and confirm if it will improve the current situation. As for the new firmware, you may need to keep an eye...

@PickaBoo Now big problem with ping. What's this? Can we have more details? How did you test the ping? Any screenshot? my Alienware can't see the 5G network on the 2m range if I set from 149 ch. I...

@Snehil Can we have the screenshot of the Ethernet Negotiation speed as below? https://www.tp-link.com/support/faq/2472/ When you connect the computer directly to the LAN port of the Archer C6, how...

@Spike1 Thank you very much for all the detailed info. Our engineer will investigate this further, please check your email box to follow this up.