Is your wifi turning On in your device when you pull down the top panel and press on the wifi toggle ?
Are you able to connect to multiple wifi connections such as Home Broadband and coffee shops etc ?
If so what's your experiences with that.
Try a soft reboot by turning the phone off and on and or forget the network connection in the wifi settings and reset it back up.
A Samsung Service Centre can run a diagnostic on the phone.
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
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