Some of my devices won"t connect to my Wi-FI while others will just fine

Lisaboo5734

Reputable
Aug 6, 2014
2
0
4,510
I just started having this issue when I bought a new phone, my old phone a LG lucid, connected just fine, After I bought my galaxy SII it will not connect to my open Wi-Fi. The device keeps giving me an authentication error. My kindle fire connects just fine. I've tried getting closer to the modem, that isn't the problem. I've disconnected all other devices and tried to connect my phone, that didn't fix it I still got authentication error. It's not the device either because I can connect to other Wi-Fi just fine. I can't figure out why it will connect to my kindle and not my television or phone. Please please please help.