You may have to enable third party access through your Wealthfront account. If this doesn't work please reach out to us with more details so we can better assist you.
This is incredibly frustrating. I too have posted about this but Turbotax does not seem to care. I have used Turbotax for decades and this is my fourth year with Wealthfront. This is the first year I have had an issue and am currently unable to complete my tax return. If enough of us complain about this, hopefully they will correct the issue.
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I was finally able to get past this same problem by deleting and recreating app-specific passwords in Wealthfront until I got one that I was able to enter "blindfolded" without typos. This process was frustrating in and of itself as I got locked out of, and had to change the password for, my Wealthfront account twice (not sure why this was since it's not using the same password as Turbotax is). This whole situation could be avoided if Turbotax would allow cutting and pasting of passwords into the field or at least allowing the user to see what they are typing when they manually input the 32 character password.