[MyDog]

First I downloaded the game and the pack and it gave me the Disc Auth Fail message. Then I bought it, it wasn't original, but the salesman told me that he always tests expansions and that it works. I installed it, installed the patch and everything, and it worked. However the second time I ran the game, it again gave me the same Disc Authorization fail message. Does anyone know why doesn't it want to let me play anymore?

[Chunk]

Have you tried turning it off and back on again?

[Sean_R_LFC]

Have you tried gaming chat?

[Rebel]

Could be a lot of reasons why its not working. Apparently people have had the same issues. Here's a website link from the Sims Forums that will probably help you out a lot. I've never had it so couldn't honestly tell you how to fix it.

http://forum.thesims3.com/jforum/posts/list/506485.page