Wifi error: "Network Error - Invalid arguments" (on a fresh install)

    Hello everyone,

    I bought my father a Raspberry Pi 3 in order to install LibreElec on it.
    Everything went flawless, excepting the network (Wifi) connection: I enter my password (and yes, i double checked it was the right one), but once I press "ok" i have the following error message: "Network Error - Invalid arguments".

    The password for my wifi is like that "abcd12-efgh34-ijkl56". No complex symbols, nothing weird.
    The password is working with my phone right now, so I guess it's not related to the wifi passsword.

    So, i'm stuck! :( Any help will be great!

    I did a fresh install on 2 different systems in the past 3 days, both times i had the same issue. I just kept entering the password 3-4 times untill it finally took. Happened the same way on both systems. It's like it times out to fast before it registers the password is actually correct. Keep trying.

    Edited once, last by default_user8 (February 24, 2017 at 5:27 PM).

    Thanks for your advice. I did exactly the same than you... and it works. I went out for shopping, when I was back, it was working. Don't know why. Perhaps it's an issue...?