Kindly perform the below mentioned quick steps and be assured it would resolve your issue: 1) Check your device in a different location/network coverage area. 2) Check network mode settings: Select the network mode e.g LTE/3G/2G (auto connect). Apps screen > Settings > Connections >Mobile networks > Network mode SIM1/ SIM2 > network mode.
If the issue still persists kindly attach the log file and send it to us in the Samsung member application(attach when the issue occurs within first 15 minutes of the occurrence of the issue.):- Samsung Members App > Feedback >Error report > Attach log file.
