Internet stops working at night?

For the past 2 days my internet has stopped working at night but works perfectly fine in the morning. Both my computer and mobile devices can't use the internet during night. Does anyone know how to fix this? Please give step by step easy to follow instructions.

?2015-04-18T22:01:44Z

I would make sure you don't have a virus. Some of them hijack your internet to use your computer's extra cycles. This one may be doing it only at night because they think you won't notice.

Alex V2015-04-18T21:27:06Z

Maybe your ISP is running some kind of maintenance while thereshould little Internet traffic. Call them up.

SailorDumb2015-04-18T21:19:25Z

does someone in the house turn off the router/modem/internet at night?