Nevermind, I put the BD in my PS3, did the same thing I was doing on my PS4, and it gave me a slightly different IP address.

I typed that into my browser, and it worked just fine.

I think it has to do with how my PS3 is connected to my PC. It has a media server connection, and I don't think my PS4 does. (In case anyone else is having this issue, try setting it up and seeing if it works!)