Can't connect to Ameritrade. "Connect my account" is grayed-out.

If you are filing with TurboTax online, follow these steps: 

• Check your internet connection.  Try to log out and sign back in the program. 
• Clear your cache and sign back into the program.  To clear cache, click here: Cache
• You may also try a different browser.  
• Then try again.

If import does not go smooth, I will suggest to manually enter info.  For import, there are a limit on how many transactions TurboTax can handle.  See blue links below.  Here are the steps:

In TurboTax online,

• Sign into your account, select Pick up where you left off
• At the right upper corner, in the search box, type in 1099b and Enter 
• Select Jump to 1099b
• Follow prompts
• On-screen, "Let's import your tax info, select I'll type it myself
• Follow prompts to continue

For more information, click here: 

how many stock transactions TT can handle

Import / crashed