Good morning, why does my 4g/H symbol keep coming on and off when using wifi?
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It'll happen when your Wi-Fi drops signal @Claired28 and it'll automatically switch to mobile data, if it's switched on. If you don't want it happening then simply switch off your mobile data when using Wi-Fi.
You can change the set to us on your Samsung Galaxy s8+ so it does not try to change connection.
Pull down your notification shade and long press on the Wi-Fi symbol.
Turn off 'Switch to Mobile Data
Daily Driver > Samsung Galaxy s²³ Ultra 512Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help. " This is the way. "