Battlefield 3 download gets to 98% then goes back to 96% over and over and never completes

Thanks for the reply Rumbutter, though I ended up having to do something else to get it fixed.

I looked at the Client_Log.txt in C:\ProgramData\Origin\Logs and saw that it was failing at the file Update/Xpack1/Data/Win32/Levels/XP1_001/XP1_001.sb. I deleted the file and the stream file in that directory and it worked after that. 

Received error from the http channel: The download session received an http server error with code [408]        

                                                 
Request error: Update/Xpack1/Data/Win32/Levels/XP1_001/XP1_001.sb Error: The download session received an http server error  

File needs to be redownloaded: Update/Xpack1/Data/Win32/Levels/XP1_001/XP1_001.sb    

                               
WARNING: 1 Incomplete files detected.  Attempting to redownload.