Looks like this post hasn't been correctly answered by the staff. If the web site keeps timing out on you after uploading the 1099-B for your stocks sales, check your 1099-B statement. If you have a lot of (over 1,000 seems to be the limit) transactions TurboTax won't be able to handle it.
Manually enter the transaction totals then upload your 1099-B statements will do the job.
