There are several reasons why your phone may not be able to access the Internet over a wired network. First, check that your wired connection is properly plugged into the port between your phone and your router. Secondly, make sure that your router is set up correctly and that the wired network is functioning properly. In addition, your phone may have set the wrong network configuration, you can try to reset the network connection or restart the phone. Finally, if the above methods are ineffective, there may be a problem with your network provider, you can contact them for consultation and solution.
If there is a problem with the network itself, it is not possible to use the network without the network speed, it is recommended to restart the wireless router to refresh the network speed and try again.