I have been attempting to play the game. I purchased the disk as well as the expansion pack. When I start to play the game attempts to download updated content 5.51GB. However I get a caterpiller error every time. It varies as to how long it goes before it errors out. The highest was 60%. I have tested my ISP connection I have zero dropped packets and 3% jitter. I have a 20mb connection. Your website says this is your problem but others are playing. I have an open NAT connection. I have not had any problems with any other games that I play. Please help!