1. 确认WiFi密码正确：

WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
WifiConfiguration wifiConfig = new WifiConfiguration();
wifiConfig.SSID = "\"" + networkSSID + "\"";
wifiConfig.preSharedKey = "\"" + networkPass + "\"";
int netId = wifiManager.addNetwork(wifiConfig);
wifiManager.disconnect();
wifiManager.enableNetwork(netId, true);
wifiManager.reconnect();

2.清除WiFi网络设置并重新连接：

public void forgetWifiNetwork() {
    WifiManager wifiManager = (WifiManager) getSystemService(Context.WIFI_SERVICE);
    WifiInfo wifiInfo = wifiManager.getConnectionInfo();
    wifiManager.disableNetwork(wifiInfo.getNetworkId());
    wifiManager.removeNetwork(wifiInfo.getNetworkId());
    wifiManager.saveConfiguration();
}

3. 重启Android设备：

public void restartDevice() {
    Intent intent = new Intent(Intent.ACTION_REBOOT);
    intent.putExtra("nowait", 1);
    intent.putExtra("interval", 1);
    intent.putExtra("window", 0);
    sendBroadcast(intent);
}