My Samsung A20 have a problem. After blocking of display, when unblock, wifi speed drastically slow dawn. There is only one solution.Reset network settings.But it only helps until the next display lock. It is very uncomfortable. Could you show me a normal solution? The network is not overloaded, only one device is connected.
Try restarting your device and wifi router. If it still doesn't work force the phone to reboot by holding down volume down and power button for 7 seconds and wait for it to start. If all of them doesn't work, backup and reset your device. Contact Samsung at your nearest operator.
