Error " no secrets were provided"

[filo]

I’m afraid this seems to be a very problematic wifi card. Just searched RTL8192EU in the forum and there was never a real solution.
The only reasonable thing to try seems to be this one (although it was not working in that case, that driver is meant for this card).

RTL8192eu - Fresh install, cannot get wi fi to work

Try: sudo pacman -S 8192eu-dkms Then: sudo echo -e "blacklist rtl8xxxu" | sudo tee /etc/modprobe.d/rtl8xxxu_blacklist.conf Reboot. Also, the changes @filo recommended usually require you to reboot both your router and computer for any improvement to take effect.