Quoted from Lermods:finally got it to work. Tried USB and got the same error message about not being able to verify. tried wifi two more times, download speed was fast, but still got failed to verify messages. Third time this morning I tried wifi again and it finally verified the file so the game is now updated.
Similar scenario, but yet to have success. I finally got my Hobbit set up with working WIFI and BT. However, in attempting now 4 times to get Beta 4 to download successfully, the machine every time states 'file failed to verify'. Don't know what's going on with the servers JJP are using, it's slow enough as it is, but even more annoying when the file completes D/L only to give that error every time. I even swapped servers to see if it would make a difference, but all that did was make even slower and still fail to verify.. If I knew where to find a copy online I could D/L, I would give USB a try since generally that's reliable (except from what you experienced it seems).