Sorry, meant to include the following info in the last post:
Ever since I bought the 827, I've always had problems with the internet cutting out, but it was very infrequently, about once every 1 or 2 months. Recently, however, it's been happening multiple times a day and that's when I decided to replace it. At first I was unsure if it was the router or modem, but replacing the router seems to have solved the issue, so I'm thinking it was the router. When the internet would cut out, the wifi would always stay connected and in most cases, the network connection would still be active and I could access network resources, just not the internet, until the router was restarted. Restarting the modem wouldn't fix issue, but restarting the router generally would.