cannot connect to the personal hotspot of the new iPhone (iPhone 11 or later)

I'm using an iPhone 8 (iOS 14.5.1) as a personal hotspot and Theta V as a station, and I can connect via wireless LAN.

but,

  • iPhone12Pro (iOS 14.5.1)
  • iPhone12mini (iOS14.4.2)
  • iPhoneSE2nd (iOS 14.6, iOS14.7.1)
  • iPhone11 (iOS 14.5.1)
  • iPad mini 5th generation: (iOS 14.5.1)

When I connect them to a personal hotspot and try to connect to wifi with ThetaV as a station, the connection does not complete.

The settings are similar to the settings I checked on the iPhone 8, so I don't think there are any mistakes. Why?

Is there a phenomenon that other devices cannot connect to the personal hotspot of the new iPhone (iPhone 11 or later)?

cannot connect to the personal hotspot of the new iPhone (iPhone 11 or later)
 
 
Q