Won't Connect to Internet

Won't Connect to Internet i have a galaxy tab 3 and it was working fine at my friends house with internet, then when i brought it to my house for the first time and tried connecting to the internet this message popped up:
Asked by: Guest \| Views: 174

Total answers/comments: 3

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Guest [Entry]

may be you set the time ,date , year and timezone wrong I had the same problem 2 so I fixed the time

Guest [Entry]

"From XDA Developers: ""try unticking auto network switch option in wifi settings""

source."

Guest [Entry]

OMG THANKS, tab was set to jan 5 2004 and i never realised