Hi! I just recently bought and installed a TP-Link Archer AX3000 router. I enabled the guest network for the visitors to use but I want to reduce the bandwidth. I opened the web mangement page and did not find a bandwidth control. However, I found a QoS tab. I tried opening it but I needed to download the Tether app. After downloading, I found the router/device and proceeded to the HomeCare to access the QoS. I expected to atleast be able to prioritize certain devices and find the QoS Rule List. However, I didn't find anything. It can only prioritize the kind of usage (e.g. gaming, streaming, etc) in general. How do I control the bandwidth of the guest network or atleast some of the internet users? Why can't I access the QoS Rule List and prioritize certain users? (I would also like to ask why I can't access the QoS and Parental Controls without the Tether app.) Hoping for any answers and thank you very much for your time.