@GeorKhawam That's correct, there is only one way round it that I can see easily & that's to allow access & I would test that just to make sure that is what is doing it first, I get why you don't...

The saved config file should still work ok, the wiping is to fresh start the router, there maybe new options added as well so it's worth running through the router settings afterwards so you don't...

Only one thing comes to mind as a possibility, on the Apple products you can randomize the MAC address to change, maybe this doesn't play nice with the router, Windows also has this function but not...

@networkpiyush It doesn't list AX as a mode option on your routers on the 2.4ghz so I can only suggest to use smart connect and ensure the ax option is selected on the 5 ghz band in the mode...

@GeorKhawam Check in guest that devices can talk to the main network this could be a AP isolation setting or simply say allow guests to talk to each other or access the main network.

@Joleen My bad I read it wrong yesterday. As I read it now you never set a password in the first place & were using tether rather than the webpage? Reset the router & set it up using a 192.168.0.1 or...