Finally solved!
I had tried many things to fix my problem (tried new AX200, AX210, and 802.11ac cards, tried different antennae: 3dBi, 8dBi, 5dBi, and changed various client and router configurations) with nothing working as expected. I was either getting slow speeds or no connection at all...
I accidentally uncovered that antenna placement has a big impact when connected using 160Mhz. With the antennae placed perpendicular to
the AiMesh node (Asus XD6) my setup works. I started a continuous ping test from the client to the router and noticed that as I repositioned the antennae on...
I should also mention that the load average is: 1.14, 1.12, 1.09, so it is doing something all the time. Created a new thread to diagnose here: https://www.snbforums.com/threads/ax86u-constantly-running-at-85-c.80073/
The majority of AX86U owners posted CPU temperatures much lower than what I see with my device: https://www.snbforums.com/threads/ax86u-thermals.79880/. After seeing this, I'm interested to know what could be causing the higher than normal temperatures with mine. What should I check or change...
I have the latest firmware and get this:
Temperatures 2.4 GHz: 53°C - 5 GHz: 57°C - CPU: 88°C
<20 devices connected, nothing running on it, AC on in the room
I tried a card with the AX210 chip (this chip supports 5G and 6G), but that also fails to work properly with my XD6 + AX86U. Interestingly, it fails in a different way, instead of being unable to establish a connection using 160Mhz, like the card with an AX200 chip, the AX210 card establishes a...
Another finding: if I change the 5G control channel to 151 or higher the AiMesh system is forced to operate at 80Mhz, not 160Mhz, and the AX200 WiFi adapter connection succeeds. This is still not perfect and only half of the theoretical maximum speed, but 1.2Gbps is much better than 287Mbps.
Replacing with an AX210 card is what I am leaning towards. Although the existing card can connect to one out of my three devices. It succeeds connecting to the main router, AX86U, although at a slow speed, fails connecting to XD6, setup as an AiMesh node, and fails connecting to AX68U, also...
Indeed, that is the version I am using. I tried 22.140 and 22.130 in an attempt to isolate the problem. None of these versions worked for me.
I've reset all the devices multiple times now. I reset the Win10 networking stack, the AiMesh node (XD6) and the main router (AX86U). At the default...