Samsung note9, recently there has been a prompt "Failed to connect to the message server, please check the network configuration". What is the reason?

1. Switch the phone and wireless device again.

2. Press and hold the network name for a long time-select Forget, turn on the mobile phone wlan, and search for a signal connection attempt.

3. If conditions permit, whether this phenomenon occurs when switching to another router or trying to connect wirelessly.

4. Back up mobile phone data (phone book, SMS, multimedia files, etc.). ) and restore the factory settings.

If the problem still exists, it is suggested that you send your mobile phone to the nearest Samsung service center for testing.