Rather than sending the data to support, why don't you restore a backup to your C: drive and test it there - that will remove the possibility of the network being the cause of the problem. If it still fails, then try it on someone else's C: drive.

Finally, try the same thing with sample data, both on the network and locally. If sample data works, but your real data fails, that tells you it's a data issue.

I think with the results of these tests, you will be able to determine what is causing the problem.