Well my phone S10+ connects to the 2.4ghz band. I've tried remaining the 5ghz to something else to see if that was why and got it to show up for a second then gone. I've tried on my computer which isn't ax capable bit it doesn't show up there either. In the setting it does have check box checked for broadcast ssid
The RAX120 does have the option to use dfs channels but some devices can't use dfs/aren't compatible. Which channels on the 5ghz band are you broadcasting on?
The .84 I have downgraded and updated too. The computer is ac but only showed n for some odd reason. I had the 5ghz show up for a minute or 2 and it disappeared
Model numbers help for whatever you're using for wifi.
RAX120 does use the DFS channels for 160 Mhz support which causes issues for many devices. If you change your 5ghz channels to up-to 2400mbps speeds and not the 4800mpbs, it'll set you down to 80 Mhz support. In this mode, you can set it for channels 149-161 and see if you devices can see/select it. Try this and see if it helps your issue.
