Hi @bgrindle7
It happened the same to me, and I just recalled that I had the security ID enabled, this is also known as 2FA (2 Factor Authentication. The solution for me was just as easy as disabling the 2FA. After that, I tried to import the transactions from eTRADE and that was successfully done.
Also, I found a quick guide that explains how to disable the eTrade 2FA, I used the web application to do it. Please, see the link below.
https://mint.intuit.com/support/en-us/help-article/bank-connectivity/e-trade-error-103/L3MSBLw1j_US_....
Hope this can help you out.
Ramon M.
