To resolve the issue please follow the below mentioned steps:
1- Reset network settings (Scroll down notification panel >Settings >General Management >Reset >Reset network settings).
2-Go to Settings>Connection>Mobile Networks>Access Point Names>Reset APN as default (If you are using prepaid SIM).
3- Go to Settings> Connections>Mobile Networks> Network Mode> Select Auto- mode GSM/WCDMA/LTE.
4-Kindly check with other SIM.
For further assistance, register your concern in Samsung members app(Open Samsung members app>click on “+“icon>send feedback>Error report/ Ask Questions).
Team Samsung Members