So, my wifi suddenly started to turn off and on to the point i need to unplug it and restart it to get back. I've Google'd this problem, and it seems that I need to edit it via nano? If so, how can I do that? The version I'm using right now is Ubuntu MATE 18.04.2 LTS (Bionic) 64-bit.
Note: I really have a bad feeling that this issue is about power. Also, when I put a USB on its neighboring slot like say a keyboard or a mouse USB it seems that it happens less often.
Another thing I'm currently using this command to revive my wifi: sudo systemctl restart network-manager.service
It lasts for a bit
More info: So I used this installation https://www.youtube.com/watch?v=XJ0gcA778Ms in my Ubuntu MATE I tried every 6 slot of my USB some of it is terrible, because the adapter doesn't start while some start at first then shuts off. But, in general it shuts off randomly