If you forgot your Netflix username or password, simply go to netflix.com/loginhelp.
If you have Xfinity X1 service and don't see the tile, you don't have a compatible X1 TV Box. To access the Netflix app, you need an X1 TV Box (RNG150 devices aren't eligible) or a streaming TV Box with Xfinity Flex service.
Note: If you have an RNG150 device and want to swap it for a Netflix-compatible TV Box, see our instructions on exchanging X1 TV Boxes.