Phone won't connect to WiFi?

I'm posting this from my HTC One X. Starting earlier today, my phone refuses to connect to my wireless internet in my house. I thought it may have been because of the snow outside, but ny computer has no problem connecting. My phone just constantly says "obtaining IP address"

Has anyone else had this problem? Because it was working fine yesterday

try switching wifi off and on.

if that dont work, switch wifi off, restart router, then switch wifi on.