Wifi timed out on all devices! Pls help

Hi everyone!

Tonight I was on my laptop and ipad 4 using wifi and all of a sudden it stopped connecting. My wifi is not connecting to any of my devices and they are all up to date.

I have read through the forums and tried al the suggestions, but still get a time out error on my MacBook Pro and unable to join on my iphone and ipad.

I called my internet company and they say everything is running fine on their end.

I don't understand how they all went down at the same time.

I don't know what else to do...

Please help!! I have papers to research. ;(

thanks in advance!!