4/12 update. I got it to work after completely disabling my windows defender firewall, as well as all the other suggestions from this page: https://ttlc.intuit.com/turbotax-support/en-us/help-article/product-delivery/troubleshoot-installati...
Go to Control Panel > System and Security > Windows Defender Firewall > Customize Settings > Turn off Windows defender firewall for both the private and public networks.
Crazy that TurboTax doesn't have good error messaging or tips right on the e-file screen. They clearly don't test and collect user feedback well since Windows Defender Firewall is a default setting for all windows devices. I will be trying out a different tax software next year.
