iPhone XR Can't connect to a working WiFi network (which is a 2nd router) (but works great)

[benyben123]

Hi!

This is frustrating.

I have a router connected via wire to another router.
2nd Router is used as sort of access point, but retains full speed.

Android phone works great.
PC (wired) works great.
Mac works.
iPad works.
iPhone will not connect.
I tried resetting network settings. No.

iPhone will have no problem connecting to the "main" router and surf the web. It's just the second one that it won't connect to.

Any advice on this?
I am not tech genius, just basic stuff are OK.

Thanks so much!!!

iPhone Xr (iOS 13)

 

[ericwn]

Check it other iPhones can connect.
Church if router firmware can be updated.

 

[benyben123]

thanks. iPad connects. Will try to get another iPhone from a friend.
Firmware is up to date
Thank you for the reply

 

[SaguaroSeven]

thanks. iPad connects. Will try to get another iPhone from a friend.
Firmware is up to date
Thank you for the reply

Did you discover anything? My mother is having terrible time with new iPhone 11 and existing wifi network from an Arris cable modem/router. Obvisouly the router has garbage wifi but she can't even get connected in teh same room. Just spinning pinwheel at the network name.