Thanks for your reply I have iPhone 11 and tomtom premium try to get WiFi through hotspot from my iPhone to my navigation after putting login details it says on navigation iPhone authentication problem try to reset navigation also reset network on my iPhone still sameSounds like a password issue, or a phone that isn't yet set up for tethering.
I assume you are trying to connect to your phone first (not home WiFi)?
Please advise what you are connecting to and the steps you are taking.
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