HUAWEII mobile wifi dongle Model : E5573s

I have this mobile wifi which is connecting with every device with the exception of Mac Mini late 2014 3 GHz I7 16 GB 1600 MHz ddr3. It was connecting some time ago and then now is connecting only via usb.

Is there anyone able to tell me how to reconnect this to the wifi? It is always stating the msg : impossible to connect to the wifi network

最后更新：2017-08-26 01:54:04