I have the same issue as these closed unresolved issues:
https://community.simplifimoney.com/discussion/6834/human-interest-doesnt-work-unless-i-turn-off-mfa
https://community.simplifimoney.com/discussion/9391/connecting-human-interest-401k-does-not-trigger-2fa
When making the connection, Simplifi presents a dialog for inputting the 2FA code and correctly presents the last 4 digits of my phone number. Although there is a missing space in the message so it looks like:
We sent a code to the phone number ending in####
I've waited a few dozen minutes for the 2FA code to arrive via SMS and it never arrives.
There are no alternate ways to do 2FA on Human Interest.
I experience this both on mobile and on the web app.
I have turned off 2FA on Human Interest and I can refresh the connection, but turning 2FA back on again means Simplifi cannot connect to Human Interest.