Why is one tablet connecting to wifi but the other gives an Authentication Error?

[AC Question]

Authentication Error

I work at our public library and we have free wifi available for our patrons. I have two boys here with identical Android tablets. One of the tablets hooks up to wifi with no problem. The other sees the wifi with 4 bars of strength, will save the wifi, but says there is an authentication error whenever it tries to connect. Can anyone explain this phenomenon? As far as I can tell, the settings are set up the same and both boys can access their wifi at home.

 

[B. Diddy]

Re: Authentication Error

Welcome to Android Central! For the one that doesn't connect, make sure the Date and Time are absolutely correct.