As per your concern, we would request you to kindly perform the following steps to resolve your issue.
Kindly check the device in a different location/network coverage area.
Check device network mode settings: Settings> Connections> Mobile networks> network mode SIM1 or SIM2> Select network mode(set device network mode as 5G/LTE/3G/2G (auto connect) mode.).
Check network operator settings: Settings> Connections> Mobile networks>Network operators> Select automatically> OK> Registered on the network. Note: We recommend setting device network operators as automatically.
Kindly check the same SIM card in another phone or another SIM card in the same phone to verify the issue.
Reset settings: Settings > General Management > Reset.
In case the issue still occurs, kindly report the problems with a log file. To share a log file, click on the Samsung Members Application (Open Samsung Members Application > Support> Tap on error report > Type your query > Send).
