Router wired network can be connected to the Internet wireless network is very common we can try the following methods to repair.
1 Restart the router. Use the management background or press the restart switch to restore the router network.
2 Check the network speed limit. Go to the router Background Management - Device Management and check whether the speed limit is normal.
3 Replace the browser and device. Sometimes, the network is disconnected due to a browser fault or device fault. Replace the browser to confirm the fault.