Hi, I'm trying to connect to a wifi network but it's impossible, all my others wifi connections works like a charm but this in particular can't connect. I see a strange thing when removing the network from the network manager, it says something like "you can't remove this wifi network" but the wifi network disappears from the list of wifis, sorry but I'm from Spain and my english is very poor to make a perfect translation of the sentence, further the sentence appears and disappears in miliseconds... Any help will be welcomed, cheers from Spain and thanks in advance.

I have tried the next commands without success:

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sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*
systemctl restart network-manager.service


It should set off the power management of my wifi card but I still can't connect to this wifi...

It's so strange, I have tried making a shared connection with my android mobile and work without problems, my connection with the main router works too, then I think the problem is not in my hardware or wifi card driver...

I don't know how to reach my wifi, help please...

It's working!!! but with a little problem, only works if I turn off the bluetooth, can someone tell me why some networks like this have this problem? thanks in advance!