ZenWiFi ET9

u/crispysmoove I agree with u/TheImmortal_TK that ASUS would be a solid pick for you. BTW I have the slightly older ASUS XT8 mesh system and it works well in wireless backhaul, as it's tri-band WiFi 6 (2.4/5/5ghz bands). One of the 5ghz bands is dedicated to mesh traffic and the other 5ghz is just f

Avoid all in one units, buy a stand alone cable modem to connect to optimum and then a separate mesh like the deco. Separate mesh allows you the flexibility later to move away from cable without needing to change your mesh network. Deco will create a single network but I can’t tell if it will use a

I have the WiFi 6 version (older brother) of the ET9, called the ASUS XT8. It works great in wireless backhaul. Only need to reboot the mesh node once in a while (not perfect but very good considering it's wireless). To make it bulletproof I had to use wired backhaul via ethernet. I don't have ether

No worries. In that case I’d try a tri-band mesh system (like ASUS XT8, as I suggested). It has two 5ghz bands (one for clients, one for wireless mesh comms) so clients get full bandwidth on 2.4ghz and 5ghz. Since the rooms are right next to each other and there’s probably only one wall in the way,

If you can wire the mesh units together with ethernet, the ASUS ET9 mesh system (WiFi 6E) would work well and is only $99 for a two pack right now: https://www.asus.com/us/networking-iot-servers/whole-home-mesh-wifi-system/zenwifi-wifi-systems/asus-zenwifi-et9/ ASUS claims a coverage area of up to 5