I've tried WPA2 only and WPA2/WPA3 with no effect. Also tried 20 and 20/40 channel bandwidth. I'm not sure what other settings are of value.
Devices that won't connect
LG Washer/Drier
LG Fridge
Garmin 945 - Could not get IP error
Withings Smart Scale
Mix issues
Ecobee3 - works on static IP but...
I updated my RT-AX86U Pro to 3006.102.4 firmware and now have several devices that are unable to connect to the network. There was no change to the network settings. All cases they have lower end networking configurations like a smart fridge, garmin watch, smart scale. It seems like they are not...