Hi, I just received the AX88U pro, but it doesn't give me Wi-Fi coverage where I need it. Before I had an AC86U as a router and an AC68U as a node. Currently I cannot have the money to buy another AX88U pro to use as a node. Which one do you recommend to install as an aimesh node, taking into account that I want to activate Guest Network Pro for IOT devices, but on the same subnet?