I've been searching all over the internet for a solution. I have installed Kubuntu 16.04 and my wifi adapter ir a RTL8188CE. My problem is that I can't configure an access point with WPA & WPA2 Personal security, it connects fine, but when I'm going to connect my android phone gives me an Incorrect Password error each time I've tried. Then I changed the security type to WEP 40/128 bits and all works well.
I first tried to fix it by installing a different driver than the one from the repository as described here in one of the comments: Wifi Connectivity problems when using WPA/WPA2 Encryption
And I used this instead: https://github.com/FreedomBen/rtl8188ce-linux-driver/
But didn't work, the wifi keeps doing the same thing.