TPLink WN725N does not work with OSMC

Yes I have. Yesterday.
Dongle is connected to Raspberry. I have also an IDC Receiver attached to another USB port. Raspery is powered with a Samsung 5V 2A adapter.
As reported in this other thread, two days ago once I was able to have a wireless connection working correctly I tried to do a step further: add and external HDD.

A friend of mine borrowed me an external HDD 3.0 and I tried to connect it to Raspberry but everything frozen in Kodi. Red led was blinking. So I disconnected HDD and Kodi worked again. So I decided to set max_usb_current=1 in config.txt? But it didn’t work.

Do I have to revome this configuration? If so, why?